公开(公告)号：US3600790A

公开(公告)日：1971-08-24

申请号：US3600790D

申请日：1969-03-07

Applicant: TEXAS INSTRUMENTS INC

Inventor： DION PAUL A ,  THOMSON ARHTUR J

IPC: B21C43/04 ,  B23D79/00 ,  B23K20/24 ,  B21D39/04

CPC classification number: B23K20/24 ,  B21C43/04 ,  B23D79/00

Abstract: A wire is pulled by squeeze rolls through a drawing die, a guide bushing, a circumferential milling device, and an axially operative shaving die. The shaving die forms a virgin surface on the wire. The milling device is operative closely adjacent to the inlet of the shaving die so as to cut away its chips and prevent jamming thereby and wire breakage. Between the shaving die and the draw rolls clean cladding strips are brought into engagement with the virgin surface of the wire to effect solid-phase bonding thereto under roll squeezing action. They converge in a compartment leading to the rolls and containing a protective or reducing atmosphere. The cutting edge of the shaving die also forms a gas seal around the wire inlet to this compartment.