Produktionsteknik

This standard specifies requirements for the content of welding procedure specifications for arc welding processes.

This standard is part of a series of standards, details of this series are given in ISO 15607:2003, Annex A. The variables listed in this standard are those influencing the quality of the welded joint.

This document specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness ≥8 mm which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0 °C to 60 °C. It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic.

Where material-dependent ultrasonic values are specified in this document, they are based on steels having an ultrasonic sound velocity of (5 920 ± 50) m/s for longitudinal waves and (3 255 ± 30) m/s for transverse waves.

This document specifies four testing levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of testing levels A, B, and C is given in Annex A.

This document specifies that the requirements of testing level D, which is intended for special applications, be in accordance with general requirements. Testing level D can only be used when defined by specification. This includes tests of metals other than ferritic steel, tests on partial penetration welds, tests with automated equipment, and tests at object temperatures outside the range 0 °C to 60 °C.

This document can be used for the assessment of discontinuities, for acceptance purposes, by either of the following techniques:

a) evaluation based primarily on length and echo amplitude of the discontinuity;

b) evaluation based on characterization and sizing of the discontinuity by probe movement techniques.

This document establishes the terminology of the main types of tools for pressing, their features and dimensional characteristics. Some of these terms refer to components whose function is shown in Figure 1, Figure 2 and Figures A.1 to A.5.

This document is intended to serve as a reference for users and manufacturers of tools for pressing.

NOTE The figures are given only as examples to illustrate the terminology.

This document establishes the technical specifications for compression springs made from rectangular wires.

The parameters set in this document are applicable to springs which are set. This document does not attempt to specify the quality of the springs themselves, nor all of their dimensions (e.g. cross-section), their material or their length of life.

The springs are classified into spring rates: light, medium, strong and extra strong. For each spring rate, this document gives a colour code.