GB/T 41857-2022 Translated English of Chinese Standard (GB/T 41857-2022, GBT41857-2022): Sheet metal parts fabricated by fine blanking combined with extrusion process -- General specification [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2023 M05 4 - 12 pages This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of sheet metal parts fabricated by fine blanking combined with extrusion process (hereinafter referred to as ¡°fine blanking extrusion parts¡±). This document applies to steel fine blanking extrusion parts fabricated by fine blanking combined with extrusion process. |
Common terms and phrases
4.1 Raw material 4.1.1 Chemical composition 4.1.2 Mechanical property allowable tear grade Appearance The appearance blanking extrusion blanking shear surface carried out according damage and rust Decarburization determined through negotiation dimensional tolerance Dimensions in millimeters Dimensions The requirements extrusion convex extrusion forming extrusion-formed surface fine blanking extrusion finished fine blanking Gage length 4.1.4 height tolerance JB/T length 4.1.4 Appearance material 4.1.1 Chemical material shall comply material structure include meet the requirements millimeters Width Gage non-shear surface flatness order contract provisions of GB/T quality certificate quality inspection department Raw material 4.1.1 requirements 4.1 Raw Requirements for edge requirements of GB/T sample per batch serviceability rate grade shear droop shear surface allowable shear surface roughness shear surface verticality sheet and strip shrinkage cavity steel sheet straightness should meet strip should meet surface allowable tear surface serviceability rate surface verticality tolerance Technical requirements 4.1 tolerance of extrusion tolerance shall meet Width Gage length