Novel process of liquid phase impact diffusion welding for aluminium-based composite material

An aluminum-based composite material and diffusion welding technology, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve problems affecting joint quality, improvement, and long welding time
CN1546269AInactive Publication Date: 2004-11-17HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2004-11-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention proposes a new aluminium compound material liquid phase impacting diffusion welding process which belongs to diffusion welding technology field. The invention solves the low quality of aluminium compound material diffusion welding. The invention mainly includes: the welding thermal reservation selection is in the aluminium compound material liquid and solid phase temperature period, in the temperature range whose liquid phase volume piece-rate is 20-35% correspondent to the base body liquid phase, the thermal reservation time is 30 seconds, at first applies initial welding pressure is 5MPa, the impacting pressure is 80-120MPa, the impacting speed is applied after the welding temperature thermal reservation for 5-10 seconds, the impacting temperature is 350-700mm / s. the impacting allying time interval is 0.0001-0.01 seconds. The invention applies to aluminium compound material made up of aluminum material 6061, 6063, 2014, 2A12, 5A06, 6A02, 7A04, ZL101, ZL102 and enhancing material SiC, Al2O3, TiC, AIN.
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Description

technical field

[0001] The new process of liquid-phase impact diffusion welding of aluminum-based composite materials proposed by the invention belongs to the technical field of metal diffusion welding technology; in particular, it relates to the diffusion welding connection technology of aluminum-based composite materials. Background technique

[0002] Due to its excellent comprehensive performance, aluminum matrix composites have considerable application and huge potential application value in aerospace, aviation, military and civil fields. The research on its weldability has attracted great attention from my country and the world. However, The physical and chemical properties of the two materials that make up the aluminum matrix composite—the aluminum base material and the reinforcing material—are quite different, resulting in poor weldability.

[0003] Some people use the aluminum alloy matrix of the aluminum matrix composite material as the intermediate layer for diffusi...

Claims

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