Produktionsteknik

Kommittébeteckning: SIS/TK 134/AG 05 (AGS 445 Kvalifikationskrav vid svetsning)
Källa: CEN
Svarsdatum: den 24 feb 2025
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This document specifies a uniform system for grouping materials for welding purposes. It can also be applied for other purposes, such as heat treatment, forming and non-destructive testing.

 

It covers grouping systems for the following standardized materials:

 

— steels;

— aluminium and its alloys;

— copper and its alloys;

— nickel and its alloys;

— titanium and its alloys;

— zirconium and its alloys;

— cast irons.

Ämnesområden: Ytbehandling
Kommittébeteckning: SIS/TK 624/AG 01 (Aluminium)
Källa: CEN
Svarsdatum: den 8 mar 2025
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ISO 3210:2017 specifies methods of assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the loss of mass after immersion in acid solution(s). It consists of the following two methods. - Method 1: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in a phosphoric acid based solution without prior acid treatment. - Method 2: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in a phosphoric acid based solution with prior acid treatment. Method 1 is applicable to anodic oxidation coatings intended for decorative or protective purposes or where resistance to staining is important. Method 2 is applicable to anodic oxidation coatings intended for outdoor architectural purposes. For less severe applications, Method 1 can be more suitable. The methods are not applicable to the following: - hard-type anodic oxidation coatings which normally are not sealed; - anodic oxidation coatings that have been sealed only in dichromate solutions; - anodic oxidation coatings produced in chromic acid solutions; - anodic oxidation coatings that have undergone treatment to render them hydrophobic. NOTE 1 The methods assess the quality of hydrothermal sealing applied to anodized aluminium. They can be appropriate for other sealing methods. NOTE 2 The methods are destructive and can serve as reference methods in case of doubt or dispute regarding the results of the test for loss of absorptive power (see ISO 2143) or the measurement of admittance (see ISO 2931).

Ämnesområden: Ytrengöring
Kommittébeteckning: SIS/TK 433 (Färg och lack)
Källa: CEN
Svarsdatum: den 18 mar 2025
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WARNING — Equipment, materials and abrasives used for surface preparation can be hazardous. It is the responsibility of the user to establish appropriate safety and health practices. Reference should be made to appropriate documentation on safe handling and disposal after use for those materials and abrasives that are considered to be hazardous, such as free silica or carcinogenic or toxic substances. This document specifies requirements for almandite garnet abrasives, as supplied for blast-cleaning. It specifies ranges of particle sizes and values for apparent density, Mohs hardness, moisture content, conductivity of aqueous extract and water-soluble chlorides. The requirements specified in this document apply to abrasives supplied in the “new” condition only. They do not apply to abrasives either during or after use. Test methods for non-metallic blast-cleaning abrasives are given in the various parts of ISO 11127. NOTE Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified are generally appropriate for use when preparing other material surfaces, or components, using blast- cleaning techniques. These techniques are described in ISO 8504-2[1].

Kommittébeteckning: SIS/TK 134 (Svetsteknik)
Källa: CEN
Svarsdatum: den 19 mar 2025
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This document specifies the execution, validation, verification and documentation of a numerical welding simulation within the field of computational welding mechanics (CWM) and performed with a Scientific Computational Tool (SCT). This document is applicable to the thermal and mechanical finite element analysis (FEA) of arc, laser and electron beam welding processes for the purpose of calculating the effects of welding processes, and in particular residual stresses and distortion, in support of structural integrity assessment.

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 20 mar 2025
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This document specifies requirements for the approval of a welding process in a fixed plant, together with the requirements for subsequent welding production. This document applies to new Vignole rails manufactured in accordance to EN 13674-1 and welded by flash butt welding to crossing components in a fixed plant, and intended for use on railway infrastructures. This document applies to cast Manganese crossings manufactured to EN 15689, fabricated crossings manufactured from rail and crossings manufactured from forged/rolled premium steels. NOTE EN 14587-1 is also used for the flashed butt welding of switches. Sometimes special profiles exist in crossing construction, which are not rail profiles as defined in EN 13674 series (example: profile with machined off rail foot). In these cases, tests are defined by the railway authority in participation with the manufacturer.

Ämnesområden: Borr- och fräsmaskiner
Kommittébeteckning: SIS/TK 491 (Uppmätning av verktygsmaskiner)
Källa: ISO
Svarsdatum: den 4 apr 2025
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This document specifies, with reference to ISO 230-1 and ISO 230-2, geometric tests and tests for checking the accuracy and repeatability of positioning of numerically controlled axes for general purpose, normal accuracy, bridge-type milling machines with a fixed bridge (portal type). This document also specifies the applicable tolerances corresponding to the above-mentioned tests. This document is applicable to machines with moving tables and fixed double columns. It does not include single-column (open-sided) machines and those with fixed tables and moving columns. This document deals only with the verification of the accuracy of the machine. It does not apply to the testing of the machine operation (vibration, abnormal noise, stick-slip motion of components, etc.) nor to machine characteristics (such as speeds, feeds, etc.), which are generally checked before testing the accuracy. This document provides the terminology used for the principal components of the machine and the designation of the axes with reference to ISO 841. 

Kommittébeteckning: SIS/TK 277 (Press- och formverktyg samt fixturdetaljer)
Källa: ISO
Svarsdatum: den 11 apr 2025
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ISO 16367:2008 specifies the main dimensions and tolerances of guiding plates, U- and V-blocks, to be used in press tools.

It also specifies the designation of U- and V-blocks.