This document deals with the safety interface and control interface. It allocates signals to a conformance class and/or conformance option. It describes the detailed functions of each signal, describes and displays the timing interactions between signals in flow charts and shows examples for safety matrices and safety-related functional relationships. This document defines three conformance classes and dedicated conformance options. Classes and options consist of a number of signals to: —   allow a flexible adaptation of the interface(s) to a project-specific scope of functions and simultaneously; —   tie sets of signals tight enough to avoid unnecessary coordination efforts between suppliers of the machine tending systems and machines.

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This document describes a method for defining requirements and assuring component integrity for plastic parts created using material extrusion based additive manufacturing processes. It relates to the process, equipment and operational parameters. Processes include all material extrusion based additive manufacturing processes. This document is intended for use by AM users and customers procuring such parts.

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This document describes a method for defining requirements for plastic materials used in extrusion-based additive manufacturing (AM) processes. Materials include unfilled, filled, and reinforced plastic materials suitable for processing into parts. These materials can also contain special additives (e.g. flame retardants, stabilizers, etc.). Processes include all material extrusion-based AM processes. This document is intended for use by manufacturers of materials, feedstocks, plastic parts or any combination of the three using material extrusion-based AM. NOTE In some cases, material manufacturers can also be feedstock manufacturers. In other cases, a material manufacturer can supply materials (example: pellets) to a feedstock manufacturer (example: converter of pellets into filaments). This document does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health, and environmental practices and determine the applicability of regulatory limitations prior to use.

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This document specifies, with reference to the ISO 230 series, some families of tests for accessory spindle heads used on machining centres or numerically controlled milling machines, etc., where applicable, with horizontal spindle (i.e. horizontal Z-axis). The tests considered in this document are also applicable to manual indexing heads. This document establishes the tolerances or maximum acceptable values for the test results corresponding to general purpose and normal accuracy spindle heads used on different types of machines. This document specifies several sets of procedures for geometric tests which can be carried out on different types of spindle heads for comparison, acceptance, maintenance, adjustments or any other purpose. Grinding heads and facing heads are not included in the scope of this document. This document deals only with the verification of geometric and positioning accuracy of the accessory spindle heads and does not apply to: — the testing of the machine's head(s) operation (e.g. vibration, abnormal sound noise level, stick slip motion of components); — the machine's spindle head(s) characteristics (e.g. speeds, feeds and accelerations) which are generally checked separately; or — the verification of the machining capability under power. Tests concerning the accuracy of finished test pieces are dealt with in other ISO standards.

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This document specifies, with reference to ISO 230-1, the geometric tests on normal accuracy numerically controlled (NC) turning machines and turning centres with horizontal work spindles as defined in 3.1 and 3.2. It also specifies the applicable tolerances corresponding to the above-mentioned tests. Where applicable, this document also applies to horizontal spindle turret and single spindle automatic lathes. This document explains different concepts or configurations and common features of NC turning machines and turning centres. It also provides a terminology and designation of controlled axes. This document deals only with the verification of the accuracy of the machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick slip motion of components) nor to machine characteristics (e.g. speeds, feeds) as such are checks generally carried out before testing the accuracy.

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This document specifies, with reference to ISO 230‑1 and ISO 230‑7, the geometric tests for general-purpose normal accuracy numerically controlled (NC) turning machines and turning centres with vertical workholding spindles, as well as the corresponding applicable tolerances. This document explains different concepts or configurations and common features of NC turning machines and turning centres with vertical workholding spindles. It also provides a terminology and designation of controlled axes (see Figures 1, 2 and Table 1). This document deals only with the verification of the accuracy of the machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick slip motion of components) nor to machine characteristics (e.g. speeds, feeds). Tests not concerning the geometric accuracy of the machine are dealt with in other parts of ISO 13041.

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This document specifies the process data for additive manufacturing. This document describes additive manufacturing at the micro process plan level without making a commitment to particular machines, processes or technologies.

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This document specifies, with reference to ISO 230-1, the geometric tests on numerically controlled (NC) broaching machines of normal accuracy, with vertical axis acting for cutting operation. The accuracy of rotary axes, if available, is checked with reference to ISO 230-7. This document also specifies, with reference to ISO 230-2, the positioning tests on vertical surface type broaching machines for both linear and rotary axes. This document proposes test pieces containing broached slots and grooves with reference to ISO 230-1, cutting tests under finishing conditions. It also specifies the characteristics and dimensions of the test pieces themselves. This document is intended to supply minimum requirements for assessing the cutting accuracy of the machine. This document also establishes the tolerances for the test results corresponding to general purpose and normal accuracy vertical surface type broaching machines equipped with numerical control. This document explains different concepts or configurations and common features of NC vertical surface type broaching machines which are normally used in the manufacturing of turbine disks. It also provides a terminology and designation of controlled axes with reference to ISO 841. This document deals only with the verification of the accuracy of the broaching machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick-slip motion of components), nor to machine characteristics (e.g. speeds, feeds) as such checks are generally carried out before testing the accuracy.

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ISO 21919 describes interfaces for automated machine tending of at least one computer numerically controlled (CNC) machine by using a machine tending device. These interfaces are the link between automated machine tending devices and machines used for production. The automated machine tending is initiated by either the machine tending system or by the machine. This document gives an overview and defines the fundamental principles on how the interfaces are set up. It defines the necessary vocabulary and sets the syntax for the structure of signals. It distinguishes between the safety interface, the control interface and project specific extensions. This document defines three conformance classes and dedicated conformance options. Classes and options consist of a number of signals to simultaneously: — allow a flexible adaptation of the interface(s) to a project-specific scope of functions; — tie sets of signals tight enough to avoid unnecessary coordination efforts between suppliers of the machine tending devices and machines. ISO 21919 concentrates on the control-related and safety-related connections. It does not describe the mechanical connections, it does not determine the transfer physics, a pin assignment, the hardware of the interfaces or measure of communication, e.g. protocol, and it is not intended to be used for communication to a MES (Manufacturing Execution System). NOTE ISO 21919‑2 deals with the safety interface and control interface, allocating signals to a conformance class and/or conformance option, describing the detailed functions of each signal, describing and displaying the timing interactions between signals in flow charts and showing examples for safety matrices and safety-related functional relationships.

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This document gives requirements, guidelines and recommendations for using additive manufacturing (AM) in product design. It is applicable during the design of all types of products, devices, systems, components or parts that are fabricated by any type of AM system. This document helps determine which design considerations can be utilized in a design project or to take advantage of the capabilities of an AM process. General guidance and identification of issues are supported, but specific design solutions and process-specific or material-specific data are not supported. The intended audience comprises three types of users: — designers who are designing products to be fabricated in an AM system and their managers; — students who are learning mechanical design and computer-aided design; and — developers of AM design guidelines and design guidance systems.

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This international standard deals with all significant hazards, hazardous situations and events, listed in Clause
4, relevant to NC boring machines, NC routing machines and NC combined boring/routing machines (as
defined in 3.2.1), herein after referred to as "machines", designed to cut solid wood and material with similar
physical characteristics to wood, when they are operated, adjusted and maintained as intended and under the
conditions foreseen by the manufacturer including reasonably foreseeable misuse. Also transport, assembly,
dismantling, disabling and scrapping phases have been taken into account.

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ISO/ASTM 52901:2017 defines and specifies requirements for purchased parts made by additive manufacturing. ISO/ASTM 52901:2017 gives guidelines for the elements to be exchanged between the customer and the part provider at the time of the order, including the customer order information, part definition data, feedstock requirements, final part characteristics and properties, inspection requirements and part acceptance methods. ISO/ASTM 52901:2017 is applicable for use as a basis to obtain parts made by additive manufacturing that meet minimum acceptance requirements. More stringent part requirements can be specified through the addition of one or more supplementary requirements at the time of the order.

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ISO/ASTM 52900:2015 establishes and defines terms used in additive manufacturing (AM) technology, which applies the additive shaping principle and thereby builds physical 3D geometries by successive addition of material.
The terms have been classified into specific fields of application.
New terms emerging from the future work within ISO/TC 261 and ASTM F42 will be included in upcoming amendments and overviews of this International Standard.

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ISO/ASTM 52921:2013 includes terms, definitions of terms, descriptions of terms, nomenclature, and acronyms associated with coordinate systems and testing methodologies for additive manufacturing (AM) technologies in an effort to standardize terminology used by AM users, producers, researchers, educators, press/media, and others, particularly when reporting results from testing of parts made on AM systems. Terms included cover definitions for machines/systems and their coordinate systems plus the location and orientation of parts. It is intended, where possible, to be compliant with ISO 841 and to clarify the specific adaptation of those principles to additive manufacturing.

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ISO 17296-2:2015 describes the process fundamentals of Additive Manufacturing (AM). It also gives an overview of existing process categories, which are not and cannot be exhaustive due to the development of new technologies. ISO 17296-2:2015 explains how different process categories make use of different types of materials to shape a product's geometry. It also describes which type of material is used in different process categories. Specification of feedstock material and requirements for the parts produced by combinations of different processes and feedstock material will be given in subsequent separate standards and are therefore not covered by ISO 17296-2:2015. ISO 17296-2:2015 describes the overreaching principles of these subsequent standards.

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ISO 17296-3:2014 covers the principal requirements applied to testing of parts manufactured by additive manufacturing processes. It specifies main quality characteristics of parts, specifies appropriate test procedures, and recommends the scope and content of test and supply agreements.
ISO 17296-3:2014 is aimed at machine manufacturers, feedstock suppliers, machine users, part providers, and customers to facilitate the communication on main quality characteristics. It applies wherever additive manufacturing processes are used.

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  • Standard
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  • Standard
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ISO/ASTM 52900:2015 establishes and defines terms used in additive manufacturing (AM) technology, which applies the additive shaping principle and thereby builds physical 3D geometries by successive addition of material. The terms have been classified into specific fields of application. New terms emerging from the future work within ISO/TC 261 and ASTM F42 will be included in upcoming amendments and overviews of this International Standard.

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ISO 13041-5:2015 specifies, with references to ISO 230‑1 and ISO 230‑4, certain kinematic tests for numerically controlled (NC) turning machines and turning centres, concerning the spindle speeds, the feed speeds of the individual NC linear axes, and the accuracy of the paths described by the simultaneous movement of two or more NC linear and/or rotary axes. NOTE This part of ISO 13041 applies to numerically-controlled turning machines and turning centres with horizontal, vertical, and inverted vertical type workholding spindle(s).

  • Standard
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  • Standard
    36 pages
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ISO 17296-2:2015 describes the process fundamentals of Additive Manufacturing (AM). It also gives an overview of existing process categories, which are not and cannot be exhaustive due to the development of new technologies. ISO 17296-2:2015 explains how different process categories make use of different types of materials to shape a product's geometry. It also describes which type of material is used in different process categories. Specification of feedstock material and requirements for the parts produced by combinations of different processes and feedstock material will be given in subsequent separate standards and are therefore not covered by ISO 17296-2:2015. ISO 17296-2:2015 describes the overreaching principles of these subsequent standards.

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ISO 17296-3:2014 covers the principal requirements applied to testing of parts manufactured by additive manufacturing processes. It specifies main quality characteristics of parts, specifies appropriate test procedures, and recommends the scope and content of test and supply agreements. ISO 17296-3:2014 is aimed at machine manufacturers, feedstock suppliers, machine users, part providers, and customers to facilitate the communication on main quality characteristics. It applies wherever additive manufacturing processes are used.

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ISO 230-2:2014 specifies methods for testing and evaluating the accuracy and repeatability of positioning of numerically controlled machine tool axes by direct measurement of individual axes on the machine. These methods apply equally to linear and rotary axes. ISO 230-2:2014 can be used for type testing, acceptance tests, comparison testing, periodic verification, machine compensation, etc. The methods involve repeated measurements at each position. The related parameters of the test are defined and calculated. Their uncertainties are estimated as described in ISO/TR 230-9:2005, Annex C.

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ISO/ASTM 52921:2013 includes terms, definitions of terms, descriptions of terms, nomenclature, and acronyms associated with coordinate systems and testing methodologies for additive manufacturing (AM) technologies in an effort to standardize terminology used by AM users, producers, researchers, educators, press/media, and others, particularly when reporting results from testing of parts made on AM systems. Terms included cover definitions for machines/systems and their coordinate systems plus the location and orientation of parts. It is intended, where possible, to be compliant with ISO 841 and to clarify the specific adaptation of those principles to additive manufacturing.

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ISO 14649-13:2013 specifies the technology-specific data element needed as process data for wire-EDM. Together with the general process data described in ISO 14649‑10, it describes the interface between computerized numerical controller and the programming system (i.e. CAM system or shop-floor programming system) for wire-EDM. It can be used for wire-EDM operations on this kind of machine. The scope of ISO 14649-13:2013 does not include tools for any other technologies (e.g. turning, grinding). Tools for these technologies are described in other parts of ISO 14649.

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ISO 14649-14:2013 specifies the technology-specific data element needed as process data for sink-EDM. Together with the general process data described in ISO 14649‑10, it describes the interface between computerized numerical controller and the programming system (i.e. CAM system or shop-floor programming system) for sink-EDM. It can be used for sink-EDM operations on this kind of machine. The scope of ISO 14649-14:2013 does not include tools for any other technologies (e.g. turning, grinding). Tools for these technologies are described in other parts of ISO 14649.

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This European Standard specifies all significant hazards, hazardous situations and events as listed in Clause 4, which are relevant to NC boring machines, NC routing machines and NC combined boring/routing machines (as defined in 3.1) herein after referred to as "machines" designed to cut solid wood, chip board, fibreboard, plywood and also these materials where these are covered with plastic/light alloy laminate or edgings when they are used as intended and under the conditions foreseen by the manufacturer including reasonably foreseeable misuse. Machines which are designed to work wood based materials may also be used for working hardened plastic materials with similar physical characteristics as wood. This document also applies to machines fitted with: - additional equipment for sawing, sanding, edge banding or assembly units and dowel devices; - fixed or movable workpiece support; - mechanical, pneumatic, hydraulic or vacuum workpiece clamping; - automatic tool change facilities. This document does not deal with the specific hazards of edge banding equipment fitted to NC boring machines, NC routing machines and NC combined boring/routing machines. This document is only applicable to NC boring machines, NC routing machines and NC combined boring/routing machines which are designed to use milling tools with a cutting circle diameter below 16 mm or milling tools or saw-blades conforming to EN 847-1:2005+A1:2007 and EN 847-2:2001 and boring tools or sanding wheels. This document is not applicable to NC boring machines, NC routing machines and NC combined boring/routing machines which are designed to use grinding wheels.This document does not deal with the specific hazards of ejection through openings on machines where the distance between the work-piece support and the lower edge of the partial enclosure exceeds 400 mm. This document is not applicable to NC boring machines, NC routing machines and NC combined boring/routing machines which are manufactured before the date of its publication as EN. This document is not applicable to single spindle hand fed/integrated fed routing machines.

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ISO/TS 14649-201:2011 specifies the technology-specific machine tool description data elements needed as process data for manufacturing and machine characteristics. The machine tool descriptions covered in this schema are, initially, milling machines, machining centres, turning machines and multi-tasking machines. ISO/TS 14649-201:2011 is not intended to replace existing machine tool description standards, but to cover the specific needs of manufacturing resource description for manufacturing needs in the technologies described in ISO 14649. Examples of manufacturing applications of this model are: part programming for CNC machining; process planning; a simulation of machining processes; analysis of expected machining time and machine tool energy use; a description of new machine tools for manufacturing evaluation and/or controller development. The schema specified in ISO/TS 14649-201:2011 does not include representations, executable objects and base classes that are common for all technologies. These are referenced from the generic resources of ISO 10303 and from ISO 14649-10.

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ISO 14649-111:2010 specifies the data elements describing cutting tool data for milling machine tools and machining centres, which work together with the process data for milling machine tools and machining centres specified in ISO 14649-11. They can be used as criteria for selecting one of several operations; they do not describe complete information on a particular tool. Therefore, leaving out optional attributes gives the controller more freedom to select from a larger set of tools. ISO 14649-111:2010 also specifies the information to be provided in the tool set-up sheet: tool identifier; tool type; tool geometry; application-dependent expected tool life. The following data types are outside its scope: normative tool life; tool location in the tool changer; adaptive items also know as tool holders or tool clamping devices; tools for other technologies, such as turning, grinding and electrical discharge machining (EDM). ISO 14649-111:2010 uses the EXPRESS language as specified in ISO 10303-11.

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ISO 6983-1:2009 specifies requirements and makes recommendations for a data format for positioning, line motion and contouring control systems used in the numerical control of machines. ISO 6983-1:2009 helps the co-ordination of system design in order to minimize the variety of program manuscripts required, to promote uniformity of programming techniques, and to foster interchangeability of input programs between numerically controlled machines of the same classification by type, process, function, size and accuracy. It is intended that simple numerically controlled machines be programmed using a simple format, which is systematically extensible for more complex machines. ISO 6983-1:2009 is not intended for use in the specialized cases of numerically controlled flame cutting machines and drafting machines used specifically and exclusively in the shipbuilding industry. In this application, a related format (“the ESSI Format”) is specified in ISO 6582.

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ISO 13041-6:2009 specifies, with reference to ISO 230-1, a series of cutting tests, under finishing conditions, of standard test pieces. It also specifies the characteristics and dimensions of the test pieces themselves. ISO 13041-6:2009 is intended to supply minimum requirements for assessing the cutting accuracy of the machine.

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ISO 13041-3:2009 specifies, with reference to ISO 230-1 and ISO 230-7, the geometric tests on general‑purpose, numerically controlled (NC) turning machines and turning centres with inverted vertical workholding spindles, as well as the corresponding applicable tolerances. It presents the different concepts or configurations and common features of NC turning machines and turning centres with inverted vertical spindles. It also provides a terminology and designation of controlled axes. ISO 13041-3:2009 deals only with the verification of the accuracy of the machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick-slip motion of components), nor to machine characteristics (e.g. speeds, feeds), as such checks are generally carried out before testing accuracy.

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  • Draft
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ISO 14649-12:2005 specifies the technology-specific data elements needed as process data for turning. Together with the general process data described in ISO 14649-10, it describes the interface between a computerized numerical controller and the programming system (i.e. CAM system or shop floor programming system) for turning. The subject of the turning schema, which is described in ISO 14649-12:2005, is the definition of technology-specific data types representing machining features and processes for turning operations on lathes.

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ISO 14649-121:2005 specifies the data elements describing cutting tool data for turning machine tools and machining centres. They work together with ISO 14649-12, the process data for turning machine tools and machining centres. These data elements can be used as criteria for selecting one of several operations. They do not describe complete information of a particular tool, thus, leaving out optional attributes gives the controller more freedom to select from a larger set of tools.

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ISO 230-4:2005 specifies methods of testing and evaluating the bi-directional circular deviation, the mean bi-directional radial deviation, the circular deviation and the radial deviation of circular paths that are produced by the simultaneous movements of two linear axes. Its objective is to provide a method for the measurement of the contouring performance of a numerically controlled machine tool.

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ISO 14649-11:2004 specifies the technology-specific data elements needed as process data for milling. Together with the general process data described in ISO 14649-10, it describes the interface between a computerized numerical controller and the programming system (i.e. CAM system or shop floor programming system) for milling. It can be used for milling operations on all types of machines, be it milling machines, machining centres, or lathes with motorized tools capable of milling. The scope of ISO 14649-11:2004 does not include any other technologies, like turning, grinding, or EDM. These technologies will be described in further parts of ISO 14649. The subject of the milling_schema, which is described in ISO 14649-11:2004, is the definition of technology-specific data types representing the machining process for milling and drilling. This includes both milling of freeform surfaces and milling of prismatic workpieces (also known as 2 1/2-D milling). Not included in this schema are the following: geometric items; representations; manufacturing features; executable objects; base classes which are common for all technologies. They are referenced from ISO 10303's generic resources and ISO 14649-10. The description of process data is done using the EXPRESS language as defined in ISO 10303-11. The encoding of the data is done using ISO 10303-21.

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  • Standard
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ISO 14649-10:2004 specifies the process data which is generally needed for NC-machining and therefore common to several machining technologies. These data elements describe the interface between the programming system (i.e. CAM system or shop-floor programming system) and a computerized numerical controller. The programme for the numerical controller includes geometric and technological information. It can be described using ISO 14649-10:2004 together with the technology-specific parts (ISO 14649-11, ISO 14649-12, etc.). ISO 14649-10:2004 provides the control structures for the sequence of programme execution, mainly the sequence of working steps and associated machine functions. The "machining_schema" defined in ISO 14649-10:2004 contains the definition of data types which are generally relevant for different technologies (e.g. milling, turning, grinding). It includes: the general executables, including workplan, workingsteps and NC-functions; the definition of the workpiece; a feature catalogue containing features which might be referenced by several technologies; the basis for an operation definition. Not included in this schema are the following: geometric items; representations, which are referenced from ISO 10303's generic resources; the technology-specific definitions, which are defined in separate parts of ISO 14649. ISO 14649-10:2004 cannot stand alone. An implementation needs in addition at least one technology-specific part (e.g. ISO 14649-11 for milling, ISO 14649-12 for turning). Additionally, the schema uses machining features similar to ISO 10303-224 and ISO 10303-214. The description of process data is done using the EXPRESS language as defined in ISO 10303-11. The encoding of the data is done using ISO 10303-21.

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  • Standard
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ISO 13041-7:2004 describes a method of checking the contouring performance of turning centres (or numerically controlled turning) by conducting circular tests and by evaluating the radial deviation F, and circular deviation G, in accordance with ISO 230-4:1996. The concept of checks by circular tests described in ISO 13041-7:2004 is to verify the circular movement only in one position per coordinate plane of the machine, at only one feed rate, and to repeat the test once in the opposite contouring direction.

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ISO 13041-4:2004 specifies, with reference to ISO 230-2:1997, the tolerances which apply to the positioning tests for linear axes, up to 2 000 mm in length, and rotary axes of numerically controlled turning machines and turning centres. ISO 13041-4:2004 does not deal with environmental conditions, warm-up of the machine and measuring methods already described in ISO 230-2:1997.

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ISO 13041-8:2004 specifies, with reference to ISO 230-3, the tests which apply for the evaluation of thermal distortions of the machine structure and positioning system, up to 2 000 mm in length, of numerically controlled (NC) turning machines and turning centres. ISO 13041-8:2004 defines three tests which are: the environmental temperature-variation error test, the test for thermal distortion caused by a rotating spindle, and the test for thermal distortion caused by moving linear axes

  • Standard
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  • Standard
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ISO 14649-1:2003 provides an introduction and overview of a data model for Computerized Numerical Controllers and explains its advantages and basic principle, based on the concepts of Product Data.

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This International Standard describes a machine coordinate system related to the primary motions of individual numerically controlled machines and the associated machine motions. The machine coordinate system is used to provide the coordinates of a moving tool (or a point in the working space or on the drawing) with respect to a stationary workpiece. Thus a programmer can describe the machine operations without having to know whether the tool approaches the workpiece or the workpiece approaches the tool. NOTE 1 Individual numerically controlled machines means that all axes are mounted on one base or frame and all motions are related to one standard coordinate system. NOTE 2 For the sake of simplicity the majority of the text of this International Standard is written in terms accorded to machine tools but nevertheless accorded to numerically controlled machines in general. Coordinate systems and axis motion nomenclature for industrial robots is defined in ISO 9787, Manipulating industrial robots — Coordinate systems and motion nomenclatures.

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This International Standard defines the elements of a set of post processor statements to be used in numerical control software. These statements are encoded on 2 000 class and 20 000 class CLDATA records or their equivalent. Each processor using one of the ISO numerical control programming languages shall be capable of producing post processor command type CLDATA records as defined in this International Standard. Each post processor shall be capable of using the post processor command type CLDATA records defined in this international Standard as input. This International Standard does not prescribe a) the mechanism by which the statements are processed; b) the medium on which the input language statements are recorded; c) the medium and format of output machine control data; d) the order of statements within a part program.

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This International Standard defines a file structure format and a language format for the representation of CLDATA on physical media. The CLDATA reference language (RL) is used for the machining of parts. It provides for the control of technological functions and movement at the numerical control machine. Each processor using one of the numerical control programming languages shall be capable of producing CLDATA as defined in this International Standard. Each post processor shall be capable of using the CLDATA defined in this International Standard as input. The RL has been developed primarily for numerically controlled machine tools.

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Specifies a test for evaluating the graphical quality capabilities, e.g. the dynamic accuracy and the required drawing time, independently of the machine type. Does not permit the evaluation of the static drawing accuracy.

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Defines a higher-level symbolic part-programming language which is processed by a digital computer to produce a NC machine program. Annex A gives rules for representing the RL on punched cards; annex B contains syntax description on the reference language; a list of recommended synonyms is given in annex C; annex D includes an alphabetical list of major words and locations.

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