Development of Low Pressure Casting Aluminum Alloy Bearing Shield
The forming process of double layer bearing shield was researched.Starting from the quality difficulties such as multiple thin ribs,high requirements for pinhole degree,and easy shrinkage in castings,this paper introduces the design concept of low-pressure casting gating system,the design method of laminar pressure curve,and the control principle and method of needle pinhole defects using inert gas degassing method.The rationality of the prediction process is analyzed through casting simulation software simulation.Based on the large assembly interference,this paper introduces the design method of temperature difference method assembly parameters.Production trial production is carried out according to preset parameters,and it is fully verified through penetration testing,radiographic testing,pinhole degree testing,body dissection,etc.,to meet the technical requirements of the product.
万方数据
维普
