Dry laser cylinder jacket for internal combustion engine and its usage and forming cutter `

Application Number: 00114520
Application Date: 2000.04.25
Publication Number: 1277088
Publication Date: 2000.12.20
Priority Information: 1999/6/9 CN 99116515.2
International: B23P6/02;C21D1/09
Applicant(s) Name: Du Xueyi
Inventor(s) Name: Du Xueyi
Patent Agency Code: 42100
Patent Agent: he jingru
Abstract The dry laser cylinder jacket is a thin-wall one with inner wall through laser treatment to harden. The cylinder jacket is assembled to a cylinder through the processes of drilling hole in cylinder, embedding cylinder jacket, fine boring and fine grinding. The forming cutter for the said processes has a density of 13.8-14.3g/cu cm, a hardness of 89-93 HRA and a bending strength of 132-1800N/mm. The present invention solves the difficult problem of fine boring laser treated surface of workpiece and has the advantages of low cost and high accuracy.