Metal cladding

• US 4,331,283 A
• Filed: 06/27/1979
• Issued: 05/25/1982
• Est. Priority Date: 06/27/1979
• Status: Expired due to Term

• Current Assignee: Copperweld Corp. (ArcelorMittal Dofasco GP)
• Original Assignee: Copperweld Corp. (ArcelorMittal Dofasco GP)
• Inventors: Fraser, Malcolm J.
• Primary Examiner(s): Weidenfeld, Gil
• Assistant Examiner(s): RAMSEY, KENNETH J
• Application Number:
  US06/052,624
• Time in Patent Office: 1,063 Days
• Field of Search: 228/129, 228/130, 228/148, 228/156
• US Class Current: 228/130
• CPC Class Codes: B23K 20/04 by means of a rolling mill

Abstract

The specification discloses manufacture of clad rod and the like by rolling cladding strip on to the core rod. By matching the core rod cross section, cladding strip cross section, and roll pass design a composite clad rod of improved concentricity may be produced.

Claims

1. The method of forming composite clad rod and the like having substantially uniform thickness of cladding material which comprises rolling a plurality of cladding strips having a "bow-tie" and the like cross section onto a circular core rod.

2. The method of claim 1 in which the thickness of the cladding strips is increased at points which are about 30°

to 45°

from the pass line of the forming rolls as the cladding strip is applied.

3. The method of forming composite clad rod and the like which comprises rolling two strips of crowned cross section on to a core rod of circular cross section in a roll pass of oval cross section.