US 2014/0260808 A1 · METHOD OF JOINING SINTERED PARTS OF DIFFERENT SIZES AND SHAPES

Abstract

A method of joining a plurality of parts to form a unitary body. At least two sintered parts are provided. At least one of the sintered parts has at least one internal cavity. Each of the parts is formed of a hard metal composition of material. The at least two sintered parts are assembled into the shape of a unitary body. Each of the at least two sintered parts has a joining surface and when each joining surface is brought into contact the surfaces form a bonding interface therebetween. The assembled parts are subjected to a vacuum or gas atmosphere, without the application of external pressure, and to a temperature sufficient to fuse the at least two sintered parts together at the bonding interface to form the unitary body.

Claims44

Dependent claims

A method of joining a plurality of parts to form a unitary body comprising the steps of:

providing at least two sintered parts, each of the sinter parts being formed of a hard metal composition of material, at least one of the sintered parts having at least one internal cavity;
assembling the at least two sintered parts into a shape of a unitary body, wherein each of the at least two parts has a joining surface and when each joining surface is brought into contact the joined surfaces form a bonding interface therebetween;
and
subjecting the assembled parts to a vacuum or gas atmosphere, without the application of external pressure, and to a temperature sufficient to fuse the at least two sintered parts together at the bonding interface to form the unitary body.

1 more element

Dependencies are inferred from the claim text.

Method of joining sintered parts of different sizes and shapes

Life of this patent

Method of joining sintered parts of different sizes and shapes

Life of this patent

Abstract

Claims44