Method of making an assembly having a cast iron subassembly

Patent metadata

Field	Value
Publication number	US-10569328-B2
Application number	US-201414446709-A
Country	US
Kind code	B2
Filing date	Jul 30, 2014
Priority date	Jul 30, 2014
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

A method of making an assembly having a cast iron subassembly. The method may include providing a steel insert having a first joining surface and bonding the steel insert to a cast iron part to form a cast iron subassembly such that the first joining surface may be an exterior surface of the cast iron subassembly.

First claim

What is claimed is:

1. A method of making an assembly having a cast iron subassembly, comprising:
providing a steel insert having a first joining surface;
bonding the steel insert to a cast iron part to form the cast iron subassembly such that the first joining surface is an exterior surface of the cast iron subassembly;
providing a steel component having a second joining surface;
abutting the second joining surface with the first joining surface; and
joining the cast iron subassembly to the steel component proximate the first and second joining surfaces by welding, wherein the weld obtained by welding generates a weld pool, an area immediately adjacent to the weld and the weld pool defines a fusion zone and a heat affected zone, the heat affected zone does not extend to the cast iron part, and the cast iron of the cast iron part is not converted to white cast iron.

2. The method of claim 1 wherein the weld does not extend to the cast iron part.

3. The method of claim 1 wherein the cast iron part is cast around the steel insert.

4. The method of claim 1 wherein the steel insert is configured as a ring.

5. The method of claim 1 wherein the cast iron part is made of ductile cast iron.

6. The method of claim 1 wherein the steel component is a cast steel bracket.

7. The method of claim 1 wherein the steel insert protrudes from the cast iron part.

8. The method of claim 1 wherein welding produces the heat affected zone in the steel insert and the steel component.

Assignees

• Arvinmeritor Technology Llc

Inventors

• Melekian Joseph

Classifications

• B23K35/3053

  Fe as the principal constituent · CPC title

• B22D19/16 Primary

  for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills (casting compound ingots B22D7/02) · CPC title

• F16D2200/0013

  Cast iron · CPC title

• B23K35/306

  with C as next major constituent, e.g. cast iron · CPC title

• B23K35/30

  with the principal constituent melting at less than 1550°C · CPC title