Cold extrusion forming process for aluminum alloy complex cup-shaped thin-walled part
A forming process, a technology for thin-walled parts, applied in metal processing equipment, manufacturing tools, forging/pressing/hammer devices, etc. The effect of machining cycle, shortening machining cycle and reducing machining allowance
Inactive Publication Date: 2021-12-03
JILIN UNIV
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Problems solved by technology
[0002] In the forging production of aero-engine air intake guide cone parts, according to the actual forging situation of the factory, the forging of the part is designed as a cylindrical free forging, and the outer shape of the part is similar to a cup, which makes the part have a large machining allowance , which greatly affects the processing cycle of the part; and this extremely low utilization rate of raw materials does not meet the current requirements of lean manufacturing
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Embodiment 1
[0034] A cold extrusion forming process of an aluminum alloy complex cup-shaped thin-walled part, which comprises the following steps:
[0035] Step 1: Firstly, adjust the forging die, adjust the die gap and misalignment, lubricate the die with lubricant industrial lard, select the appropriate upper fixed die 210 and lower fixed die 100 according to the size of the workpiece, and adjust the upper fixed die 210 and lower fixed die Die 100 gap and misalignment distance, then lubricate upper fixed die 210 and lower fixed die 100 with industrial lard lubricant;
[0036] Step 2: Then heat and soften the raw materials to be processed, put the pretreated raw materials into the preheating device, and set the preheating temperature and preheating time;
[0037] Step 3: Put the softened raw material into the lower fixed die 100 of the forging equipment, take out the preheated raw material, put it into the molding groove 110 in the lower fixed die 100, and place the raw material in the m...
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The invention belongs to the technical field of cold extrusion processes, and particularly relates to a cold extrusion forming process for an aluminum alloy complex cup-shaped thin-walled part. The cold extrusion forming process comprises the steps that 1, a forging and pressing die is adjusted, the die gap and dislocation are adjusted, the die is lubricated through a lubricating agent industrial lard oil, and equipment is adjusted; 2, a raw material to be machined is heated and softened; 3, the softened raw material is placed in a lower fixing die in the forging and pressing equipment; 4, the forging and pressing die is started, an upper fixing die moves downwards under the action of an electric screw press, and softened metal flows in an inner cavity of the lower fixing die under the action of pressure till a cavity is filled with the metal; and 5, after the equipment stroke of the forging and pressing die is finished, the metal does not flow any more, the appearance and size of the final cold extrusion part are formed, and meanwhile the upper fixing die leaves the lower fixing die. The structure is reasonable, the part forging production requirement is met, the part machining allowance is reduced, the raw material is saved, the machining period is shortened, and the lean manufacturing requirement is met.
Description
technical field [0001] The invention relates to the technical field of cold extrusion technology, in particular to a cold extrusion forming technology for aluminum alloy complex cup-shaped thin-walled parts. Background technique [0002] In the forging production of aero-engine air intake guide cone parts, according to the actual forging situation of the factory, the forging of the part is designed as a cylindrical free forging, and the outer shape of the part is similar to a cup, which makes the part have a large machining allowance , which greatly affects the processing cycle of the part; and this extremely low utilization rate of raw materials does not meet the current requirements of lean manufacturing. First, according to the characteristics of the parts, the actual forging production and machining level of the factory, a die forging that is roughly similar to the shape of the part is designed, and the utilization rate of raw materials is increased from less than 4% to ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B21J5/02B21J3/00B21J13/02
CPCB21J5/02B21J3/00B21J13/02
Inventor 季鑫洋王超宇
Owner JILIN UNIV