Produktionsteknik

Ämnesområden: Ytbehandling
Kommittébeteckning: SIS/TK 624 (Aluminium och koppar)
Källa: CEN
Svarsdatum: den 26 apr 2021
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This document specifies methods for the measurement of specular reflectance and specular gloss of flat samples of anodized aluminium using geometries of 20° (Method A), 45° (Method B), 60° (Method C) and 85° (Method D); and of specular reflectance by an additional 45° method (Method E) employing a narrow acceptance angle.

The methods described are intended mainly for use with clear anodized surfaces. They can be used with colour-anodized aluminium, but only with similar colours.

Ämnesområden: Verktygsmaskiner: allmänt
Kommittébeteckning: SIS/TK 491 (Uppmätning av verktygsmaskiner)
Källa: ISO
Svarsdatum: den 3 maj 2021
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This International Standard defines procedures for acceptance of metal-cutting machine tools based on the tests of their capability in machining a specified workpiece (i.e. indirect testing). It gives recommendations for test conditions, applicable measurement systems and the requirements for machine tools.

This International Standard is consistent with ISO 22514 (all parts) describing statistical methods for process management and deals with the specific application of those methods to machine tools and machining of a sample batch of test pieces. This International Standard covers neither functional tests, which are generally carried out before testing the accuracy performance, nor the testing of the safety conditions of the machine tool.

Annex A gives additional information related to statistical evaluation, Annexes B and C provide agreement and evaluations forms for short-term capability tests, while Annex D gives an example.

NOTE 1 Direct testing aims to investigate individual machine tool properties, such as geometric or positioning accuracy. Short-term capability evaluation is meant to prove that a machine tool has the capability to fulfil a specific process task. It is, therefore, important to recognise that the short-term capability test is focused only on the manufactured product. This means that direct testing methods are more suited for the determination of error sources on the machine tool and for deriving constructive improvements of a machine tool that is used in a wide production spectrum; a short-term capability test is less suited for detection of error sources of the machine tool. Therefore, it is expected that short-term capability evaluation for the acceptance of metal-cutting machine tools in machining processes be primarily carried out on workpiece-dependent special-purpose machines, e.g. working stations of transfer lines, with a process-determined cycle time of less than 10 min, so that at least 50 workpieces are manufactured in one shift as the statistical uncertainty increases strongly for a smaller number. In principle, short-term capability evaluation can also be performed on universal machine tools, such as machining centres used for large batch production if they meet the above-mentioned statistical requirements.

NOTE 2 The term "short-term capability", which is a widely used term in machine tool industry, corresponds to the term "process performance" specified in ISO 22514-3.

Ämnesområden: Verktygsmaskiner: allmänt
Kommittébeteckning: SIS/TK 491 (Uppmätning av verktygsmaskiner)
Källa: ISO
Svarsdatum: den 3 maj 2021
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This document specifies test procedures to evaluate the measuring performance of probing systems integrated with a numerically controlled machine tool. Test procedures for touch trigger probing systems and scanning probing systems operating in discrete-point measurement mode are specified in section 7.1. Test procedures are specified for scanning probing systems in 7.2, for bore gauge systems in 7.3, for contacting tool measuring systems in 8.1, and for non-contacting tool measuring systems using the laser light barrier principle in 8.2.

The evaluation of the performance of the machine tool, used as a coordinate measuring machine (CMM), is outside the scope of this document. Such performance evaluation involves traceability issues, is strongly influenced by machine tool geometric accuracy and can, in addition to the machine tool probing system tests specified in this document, be evaluated according to ISO 10360-2 and ISO 10360-5.

Description of test procedures in this document are referred to machining centres. However, tests apply in principle to most NC machine tools.

Kommittébeteckning: SIS/TK 491 (Uppmätning av verktygsmaskiner)
Källa: ISO
Svarsdatum: den 3 maj 2021
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This document provides methods for the determination of the contouring performance of numerically controlled machine tools.

This document specifies methods of testing and evaluating the bi-directional circular error, the mean bi-directional radial error, the circular error and the radial error of circular paths that are produced by the simultaneous movements of two linear axes.

This document also specifies methods of testing the deviations of the circular or constant radius trajectories generated by any combination of simultaneously controlled (coordinated) linear and rotary axes. The basic principle of these tests is to coordinate the multiple axes of motion (combination of rotary and linear axes) to keep the relative position between the tool and the workpiece constant.

Annex A describes differences between circular errors and radial errors, Annex B influences of typical machine errors on circular paths executed with two linear axes, Annex C precautions for test setups for circular tests with rotary axes, Annex D shows an example of adjustment of diameter and contouring speed, and Annex E describes circular tests using feedback signal.

Kommittébeteckning: SIS/TK 134 (Svetsteknik)
Källa: CEN
Svarsdatum: den 5 maj 2021
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ISO 13918:2017 specifies the following:
- requirements for studs and ceramic ferrules for arc stud welding;
- dimensions, materials and mechanical properties.

Kommittébeteckning: SIS/TK 134 (Svetsteknik)
Källa: CEN
Svarsdatum: den 17 maj 2021
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This document provides check lists for the assessment of the environmental aspects of welding fabrication of metallic materials including site and repair work. Informative annexes indicate recommended actions for avoiding and reducing the possible environmental impacts outside the workshop.

Kommittébeteckning: SIS/TK 116 (Oorganiska ytbeläggningar)
Källa: CEN
Svarsdatum: den 23 maj 2021
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This document specifies a simulating method of test for determination of the release of metal-ions from enamelled articles, which are intended to come into contact with food.

It also specifies limits for the release of metal-ions from enamelled articles, which are intended to come into contact with food.

It is applicable to enamelled articles, including tanks and vessels, which are intended to be used for the preparation, cooking, serving and storage of food.

Ämnesområden: Verktygsmaskiner: allmänt
Kommittébeteckning: SIS/TK 491 (Uppmätning av verktygsmaskiner)
Källa: ISO
Svarsdatum: den 24 maj 2021
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This document specifies methods for defining machining tests for manufacturing accurate test pieces, and for evaluating the influence of quasi-static geometric errors of linear axes and rotary axes, and the influence of the synchronization error of simultaneously controlled multiple axes. Although quasi-static geometric errors are often major contributors for geometric errors of finished test pieces, other factors, e.g. the dynamic contouring error, can also have significant influence.

This document describes examples of test piece geometry applicable to individual machine tools, possible contributors to machining error, deviations to be measured and measuring instruments. By clarifying possible contributors to machining error in each machining test, this document gives a guidance to machine tool manufacturers or users such that proper machining tests can be chosen to evaluate a machine tool’s machining performance in specified machining applications.

Machining tests to evaluate the geometric accuracy of a single surface are described in Clause 5, and those to evaluate geometric relationship of multiple machining features are described in Clause 6. Clause 7 presents machining tests for other objectives: machining tests for evaluation of short-term capability (subclause 7.2), and machining tests for evaluation of thermal influence (subclause 7.3).

Ämnesområden: Svetsfogar
Kommittébeteckning: SIS/TK 125 (Oförstörande provning)
Källa: CEN
Svarsdatum: den 1 jun 2021
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This document specifies acceptance levels for indications from imperfections in aluminium butt welds detected by radiographic testing. If agreed, the acceptance levels can be applied to other types of welds (such as fillet welds etc.) or materials.

The acceptance levels can be related to welding standards, application standards, specifications or codes. This document assumes that the radiographic testing has been carried out in accordance with ISO 17636-1 for RT-F (F = film) or ISO 17636-2 for RT-S (S = radioscopy) and RT-D (D = digital detectors).

When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of imperfections permitted by standards are compared with the dimensions of indications revealed by a radiograph made of the weld.

Kommittébeteckning: SIS/TK 116 (Oorganiska ytbeläggningar)
Källa: CEN
Svarsdatum: den 2 jun 2021
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This document specifies a destructive method for the measurement of the local thickness of metallic coatings (hereafter also other inorganic coatings are meant) by examination of cross-sections with a scanning electron microscope (SEM). The method can be used for thicknesses up to several millimetres, but for such thick coatings it is usually more practical to use a light microscope (ISO 1463) when applicable. The lower thickness limit depends on the achieved measurement uncertainty (see Clause 10).

Kommittébeteckning: SIS/TK 142 (Konstruktionsstål)
Källa: CEN
Svarsdatum: den 3 jun 2021
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This document specifies requirements for continuously organic coated (coil coated) steel flat products. It particularly specifies the performance requirements.

The products covered are wide strip, sheet cut from wide strip, slit wide strip, strip rolled in widths less than 600 mm and cut lengths (from sheet or strip).

NOTE National provisions can set up relationships between the performances of the coatings as required in this document and the outdoor atmospheres and ambiances required for a relevant building under study.

This document is not applicable to continuously organic coated flat products made of:

— tin mill products;

— electrical steels.

Ämnesområden: Organiska ytbeläggningar
Kommittébeteckning: SIS/TK 624 (Aluminium och koppar)
Källa: ISO
Svarsdatum: den 10 jun 2021
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This document specifies a method for specifying decorative and protective organic coatings on aluminium and its alloys. It defines the characteristic properties of organic liquid coatings and lists methods of test for checking the characteristic properties with minimum performance requirements, and gives information on the grades of application environment in which the painted aluminium should exercise.
This document is chiefly address to aluminium products with liquid coatings for general applications, liquid coatings mainly processed by electrostatic liquid spraying, air spraying or airless spraying.
This document excludes coil coatings on aluminium.

Ämnesområden: Organiska ytbeläggningar
Kommittébeteckning: SIS/TK 624 (Aluminium och koppar)
Källa: ISO
Svarsdatum: den 10 jun 2021
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This document lays down a method for specifying decorative and protective powder coatings on aluminium and its alloys. It defines characteristic properties of powder coatings and their testing methods with minimum performance requirements, referring to the application and the aggressiveness of the environment in which the coated aluminium should exercise.
This document excludes coil coatings on aluminium.