ISO 9956-10 pdf download – Specification and approval of weldingprocedures for metailic materials —Part 10: Welding procedure specification for electron beam welding.
3.12 beam deftection
Electromagnetic deflection of the beam from the gun axis.
3.13 beam oscillation
Periodic deflection of the beam, achieved by electromagnetic forces.
NOTE: An oscillation is defined by:
a) signal shape e.g. circular, transversal, longitudinal;
b) the signal amplitude;
C) the frequency;
d) the orientation in relation to the welding direction.
4 Technical contents of welding procedure specification (WPS)
4.1 General
The welding procedure specification (WPS) shall give details of how a welding operation is to be performed end shall contain all revelant information about the welding work.
Welding procedure specifications may cover a certain range of thicknesses of the joined parts end may also cover a range of parent metals and even filler metals. Some manufacturers may additionally prefer to prepare work instructions for each specific job as part of the detailed production planning.
The information listed below is adequate for most welding operations. For some applications it may be necessary to supplement or reduce the list. The relevant information shall be specified in the WPS.
Ranges and tolerances, according to the manufacturer’s experience, shall be specified when appropriate.
An example of the WPS format is shown in annex A.
4.2 Related to the manufacturer
4.2.1 IdentifIcation of the manufacturer
4.2.2 Identification of the WPS
4.2.3 Reference to the welding procedure approval record (WPAR) or other documents, as required
4.3 Related to the parent materials
4.3.1 Grades
Identification of the parent materials (and backing plates, if any), preferably by reference to an appropriate standard, and for information type of product (rolled, forged, cast, etc.) shall be provided.
A WPS may cover a group of materials.
4.3.2 Materials dimensions
The following dimensions shall be provided:
– the thickness range of the joint;
– the range of workpiece outside diameters.
4.4 WeldIng process
The welding process number is 76 according to EN 24063.
4.5 Joint design
A sketch of the joint design showing configuration, dimensions and tolerances shall be provided.
4.6 Welding position
The welding positions shall be designated as specified in EN ISO 6947.
4.7 Joint preparation
The following regarding joint preparation shall be provided :
– joint preparation method, cleaning, degreasing etc.:
– for magnetic materials any recommendation will be specified on the WPS, if necessary;
– protection of joint preparation (if necessary).
4.8 Welding technique
The welding technique sketch shall show details of all weld passes (tacking pass, welding pass, cosmetic pass).
ISO 9956-10 pdf download – Specification and approval of weldingprocedures for metailic materials —Part 10: Welding procedure specification for electron beam welding
