Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7220725 | Materials & Design (1980-2015) | 2015 | 8 Pages |
Abstract
An automobile brake bracket is fabricated by casting-forging integrated forming technology. It is shown that molten pouring speed, forging start-up time, forging pressure and heat treatment strongly affect the structure and properties of A356 aluminum casting and forging parts. Furthermore, high-speed filling results in shrinkage pores and cracks and low-speed filling leads to incomplete filling. Excellent appearance, macrostructure and comprehensive mechanical properties are obtained at pouring temperature 725 °C, filling speed 66 mm/s, forging start-up time 3 s and forging pressure 270 MPa. After heat treatment, the hardness, tensile strength and elongation to fracture are 58HRB, 335 MPa, 18.4% respectively.
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Authors
H.T. Zhou, S.X. Xu, W.D. Li, S.C. Wang, Y. Peng,