Sandwich type frictional welding tool and method of metal welding part

A metal welding and sandwich technology, applied in the field of friction welding, can solve the problems of low strength and voids of metal composite surfaces, and achieve the effects of high reliability and quality, improved strength and high efficiency

Pending Publication Date: 2018-10-02
ZHUZHOU JIABANG REFRACTORY METAL
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] None of the existing patent documents solves the problems of low strength and gaps in the metal composite surface in metal friction welding, and the quality of friction welding between metals needs to be improved

Method used

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  • Sandwich type frictional welding tool and method of metal welding part
  • Sandwich type frictional welding tool and method of metal welding part
  • Sandwich type frictional welding tool and method of metal welding part

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Embodiment Construction

[0038] The following will be attached Figure 1~4 The present invention is further described with examples.

[0039] Sandwich-type friction welding tooling for metal welding parts, including an upper fixture 1 for clamping an upper metal piece, a middle fixture 2 for clamping a middle metal piece, and a lower fixture 3 for clamping a lower metal piece, and is characterized in that It includes a rotating impact assembly 4 connected to an external driving device and a pressure assembly 5 mounted on the upper clamp 1 for pressing the upper metal piece, the middle metal piece and the lower metal piece. The rotating impact assembly 4 is mounted on the middle layer On the outer periphery of the clamp 2, the rotating impact assembly 4 rotates at a high speed and impacts the middle clamp 2, pushing the middle clamp 2 to vibrate in the horizontal direction.

[0040] As shown in the figure, the metal parts to be welded are clamped by the upper, middle and lower three-layer clamps, and ...

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Abstract

A sandwich type frictional welding tool of a metal welding part comprises an upper clamp for clamping an upper metal part, an intermediate layer for clamping an intermediate metal part, and a lower clamp for clamping a lower metal part. The sandwich type frictional welding tool is characterized by further comprising a rotating impacting assembly which is in driving connection with an outer drivingdevice, and a pressure assembly which is mounted on the upper clamp and is used for compressing the upper metal part, the intermediate metal part and the lower metal part; the rotating impacting assembly is mounted in the outer circumference of the intermediate clamp and rotates at high speed to impact the intermediate clamp, and the intermediate clamp is pushed to vibrate in the horizontal direction. According to the sandwich type frictional welding tool, the friction welding intensity of metals can be improved; gaps are avoided; the thickness ratio of the metal layers can be accurately controlled; the welding costs a little time, and the welding efficiency is high; the welding reliability and quality can be improved. The invention also provides a sandwich type frictional welding methodof the metal welding part.

Description

technical field [0001] The invention relates to a friction welding tool and method for a sandwich type metal welding piece, which is used for vibration friction welding of metal pieces and belongs to the technical field of friction welding. Background technique [0002] Cpc product is a sandwich composite material, its composition is copper / molybdenum copper / copper, because this material has a good thermal conductivity and low linear expansion coefficient, it is widely used as a heat sink material in the semiconductor industry, such as Radar, base station, microwave radio frequency, laser radio frequency field. [0003] The existing production technologies of cpc products include: [0004] 1. Argon arc welding: The copper plate and molybdenum copper plate are used in vacuum welding equipment, and the copper plate and molybdenum copper plate are welded together by argon arc welding, and then the copper and molybdenum copper are composited by hot rolling. The disadvantage is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12B23K20/24
CPCB23K20/122B23K20/126B23K20/24
Inventor 申智慧吴勇军
Owner ZHUZHOU JIABANG REFRACTORY METAL
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