Aluminum alloy powder swaging forming equipment and swaging forming method

Abstract

The invention discloses aluminum alloy powder swaging forming equipment and a swaging forming method, and belongs to the field of powder metallurgy. The aluminum alloy powder swaging forming equipmentand the swaging forming method aim at avoiding alloy cracking in a swaging process and simplify a swaging procedure. The aluminum alloy powder swaging forming equipment comprises a swaging die, a first extrusion device and a second extrusion device, wherein the swaging die comprises a split cavity and a fixing outer die, a heating device and a thermocouple are arranged on the fixing outer die, anextrusion forging through groove is formed in the split cavity, the diameter of the upper end of the extrusion forging through groove is larger than that of the lower end of the extrusion forging through groove, an inclined face is arranged on the inner wall of the extrusion forging through groove in the circumferential direction, the extrusion forging through groove is used for placing powder, during forging, the first extrusion device and the second extrusion device extrude the powder in the extrusion forging through groove, during die releasing, the second extrusion device abuts against the fixing outer die, and the first extrusion device extrudes the split cavity. In the swaging process, the heating device can heat the powder, the temperature is controlled and detected through the thermocouple, the most ideal temperature is kept, and the powder is prevented from being broken in the swaging process.

Description

【Technical field】 [0001] The invention relates to the field of powder metallurgy, in particular to aluminum alloy powder extrusion forging forming equipment and an extrusion forging forming method. 【Background technique】 [0002] Powder metallurgy is a common process technology, but in the existing aluminum alloy powder metallurgy process, there are many steps required, such as powder loading, compaction, sintering, extrusion, forging and a series of steps, each Each step needs to be carried out with suitable tooling, equipment or molds. The cost of equipment investment is high, the preparation process is long, the work efficiency is extremely low, and the scrap rate is high. In addition, the temperature range of aluminum alloy forging is small, and the extrusion and forging steps , Due to the temperature difference between the aluminum alloy material and the environment and the mold, the temperature will drop after heat loss, which will lead to cracking of the aluminum allo...

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Problems solved by technology

[0002] Powder metallurgy is a common process technology, but in the existing aluminum alloy powder metallurgy process, there are many steps required, such as powder loading, compaction, sintering, extrusion, forging and a series of steps, each Each step needs to be carried out with suitable tooling, equipment or molds. The cost of equipment investment is high, the preparation process is long, the work efficiency is extremely low, and the scrap rate is high. In addition, the temperature range of aluminum alloy forging is small. , due to the temperature difference between the aluminum alloy material and the environment and the mold, the temperature decreases after heat loss, and the cracking of the aluminum alloy product is caused when extrusion or forging

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