Experimental study of heat treatment process of cold heading steel self piercing rivets

doi:10.13251/j.issn.0254-6051.2021.07.037

Abstract

Abstract: In order to test the hardness of the self piercing rivets made of the SWRCH35K cold heading steel, quenching and tempering heat treatment processes were carried out in a mesh belt continuous furnace. The results show that when the rivets are quenched by heating at 860 ℃ for 90 min and tempered at different temperatures in the range of(200-215) ℃ for 80 min after micro-carburizing at 900 ℃, the hardness value (≥ 530 HV1) can meet the technical requirements, and at the same time, the self piercing rivets keep sharp edge and good plasticity of matrix, with good riveting effect.

Key words: self piercing rivet, SWRCH35K cold heading steel, quenching, tempering, hardness

CLC Number:

TG156

Su Min. Experimental study of heat treatment process of cold heading steel self piercing rivets[J]. Heat Treatment of Metals, 2021, 46(7): 191-194.

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Experimental study of heat treatment process of cold heading steel self piercing rivets

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