ISO 15614-7:2016规定了堆焊的初步焊接工艺规范如何通过焊接工艺试验进行评定。 ISO 15614-7:2016定义了第8条所列变量范围内所有实际焊接操作的焊接工艺试验执行条件和焊接工艺评定范围。 ISO 15614-7:2016适用于所有适用于堆焊的焊接工艺。在对预生产试件进行鉴定的情况下，应根据ISO 15613进行鉴定，但应尽可能根据ISO 15614的本部分进行试验。ISO 15613或ISO 15614-1涵盖了母材的构建和修复。 本版ISO 15614-7适用于所有新的焊接工艺评定试验。它不会使按照ISO 15614本部分先前版本进行的焊接工艺试验无效。 如果当前版本要求进行附加试验，则只需在根据现有WPS和ISO 15614本部分制造的试件上进行这些附加试验。 如果在异种材料之间焊接时使用黄油，则焊接工艺应符合ISO 15614-1的规定。结合不同材料结构或性能的焊缝可能需要这种黄油，例如将马氏体钢或铁素体钢与奥氏体钢连接。 应用标准可能要求进行其他测试。

ISO 15614-7:2016 specifies how a preliminary welding procedure specification for overlay welding is qualified by welding procedure tests. ISO 15614-7:2016 defines the conditions for execution of welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables listed in Clause 8. ISO 15614-7:2016 applies to all welding processes suitable for overlay welding. In situations where qualification is carried out on a pre-production test piece, the qualification is performed in accordance with ISO 15613 except that, as far as possible, the testing is according to this part of ISO 15614. Building up and repair of parent metal is covered by ISO 15613 or ISO 15614？1. This edition of ISO 15614？7 is applicable to all new welding procedure qualification tests. It does not invalidate previous welding procedure tests made in accordance with previous editions of this part of ISO 15614. Where additional tests are required by the present edition, it is only necessary that those additional tests be carried out on a test piece made in accordance with the existing WPS and this part of ISO 15614. If buttering is used for welding between dissimilar materials, the welding procedure is qualified in accordance with ISO 15614？1. This buttering may be required for weld combining different material structure or properties, e.g. joining martensitic steels or ferritic steels with austenitic steels. Additional tests may be required by application standards.