Friction-welded structure assembly, water-cooled internal combustion engine cylinder head, water-cooled internal combustion engine and machine equipped with same

Patent metadata

Field	Value
Publication number	US-10197006-B2
Application number	US-201415028692-A
Country	US
Kind code	B2
Filing date	Dec 22, 2014
Priority date	Dec 23, 2013
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

The invention provides a friction-welded structure assembly, comprising a first workpiece ( 10 B), a second workpiece ( 10 C) and a friction welding connecting part ( 10 A). The lower side of the friction welding connecting part ( 10 A) has a first friction welding junction interface ( 10 H) which is in contact with a surface of the first workpiece ( 10 B) and a second friction welding junction interface ( 11 H) which is in contact with a surface of the second workpiece ( 10 C). The friction welding connecting part ( 10 A) is tightly pressed on both the first workpiece ( 10 B) and the second workpiece ( 10 C) which are positioned to be relatively corresponding and fixed to each other, while being moved under a pressure, so as to heat said first friction welding junction interface ( 10 H) and said second friction welding junction interface ( 11 H), then said friction welding connecting part ( 10 A) is stopped under the pressure, and said first friction welding junction interface ( 10 H) and said second friction welding junction interface ( 11 H) become cool, thereby said first workpiece ( 10 B) and said second workpiece ( 10 C) are welded together to form the friction-welded structure assembly via said friction welding connecting part ( 10 A). Also, The invention relates to a water-cooled internal combustion engine cylinder head using the friction-welded structure assembly described above.

First claim

What is claimed is:

1. A friction-welded structure assembly, comprising:
a first workpiece, said first workpiece having a first support shoulder notch and a second support shoulder notch;
a second workpiece, said second workpiece having a through hole corresponding to said first workpiece, and said second workpiece being supported at its lower portion on the first support shoulder notch of said first workpiece; and
a friction welding connecting part having an extended reinforcing portion being supported on the second support shoulder notch of said first workpiece, said friction welding connecting part ( 10 A) having, at its lower portion, a first friction welding junction interface ( 10 H) which is in contact with a surface of said first workpiece ( 10 B), and a second friction welding junction interface ( 11 H) which is in contact with a surface of said second workpiece ( 10 C),
wherein said friction welding connecting part ( 10 A) is tightly pressed on both said first workpiece ( 10 B) and said second workpiece ( 10 C) which are positioned to be relatively corresponding and fixed to each other while being moved under a pressure, so as to heat said first friction welding junction interface ( 10 H) and said second friction welding junction interface ( 11 H), then said friction welding connecting part ( 10 A) is stopped under the pressure, and said first friction welding junction interface ( 10 H) and said second friction welding junction interface ( 11 H) become cool, thereby said first workpiece ( 10 B) and said second workpiece ( 10 C) are welded together to form the friction-welded structure assembly via said friction welding connecting part ( 10 A), and
wherein said friction welding connecting part ( 10 A) has an axially step-like shape so that said first friction welding junction interface ( 10 H) and said second friction welding junction interface ( 11 H) of said friction welding connecting part ( 10 A) are in axially height-different planar surfaces and/or curved surfaces.

2. The friction-welded structure assembly according to claim 1 , wherein said first workpiece ( 10 B) has a first workpiece internal hole ( 11 B), and said friction welding connecting part ( 10 A) has a friction welding connecting part internal hole ( 11 A), in the friction-welded structure assembly formed by welding said first workpiece ( 10 B) and said second workpiece ( 10 C) via said friction welding connecting part ( 10 A), said friction welding connecting part internal hole ( 11 A) is aligned with said first workpiece internal hole ( 11 B).

3. The friction-welded structure assembly according to claim 1 , wherein said friction welding connecting part ( 10 A) is provided with engaging edges ( 12 A) on an outside wall of one end thereof and/or on an inside wall of one end thereof.

4. The friction-welded structure assembly according to claim 1 , wherein said friction welding connecting part ( 10 A) is tightly pressed on both said first workpiece ( 10 B) and said second workpiece ( 10 C) which are positioned to be relatively corresponding and fixed to each other, while being rotated or reciprocated under a pressure.

5. The friction-welded structure assembly according to claim 1 , wherein said first workpiece ( 10 B), said second workpiece ( 10 C) and/or said friction welding connecting part ( 10 A) are made of metal materials and/or synthetic materials.

6. The friction-welded structure assembly according to claim 5 , wherein said first workpiece ( 10 B), said second workpiece ( 10 C) and/or said friction welding connecting part ( 10 A) are made of aluminum alloys, magnesium alloys and/or titanium alloys.

Assignees

• Univ Shanghai Jiaotong
• Jiang Yimin
• Jiang Yaofu

Inventors

• Jiang Yaofu
• Ding Wenjiang
• Peng Liming
• Fu Penghuai
• Zhu Yongkui

Classifications

• B23K20/129

  specially adapted for particular articles or work · CPC title

• F01L3/08

  Valves guides; Sealing of valve stem, e.g. sealing by lubricant · CPC title

• H05B6/02

  Induction heating · CPC title

• B23K2101/006

  Vehicles · CPC title

• F02F1/36 Primary

  for liquid cooling · CPC title