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<p>The influence of the casting-forging integrated forming technology on the microstructure, tensile strength and elongation of a 6061 aluminum alloy automobile brake caliper housing was investigated using scanning electron microscopy, energy dispersive spectroscopy and tensile testing. At constant forging start-up times, both the tensile strength and the elongation of the brake caliper housing increased with increasing forging force up to 270&#xa0;MPa. At constant forging force, both the tensile strength and the elongation of the brake caliper housing first increased with increasing forging start-up time, but then decreased. At a forging force of 270&#xa0;MPa and a forging start-up time of 4&#xa0;s, the brake caliper housing had superior comprehensive mechanical properties, with a tensile strength of 354&#xa0;MPa and an elongation of 12%, which were an increase of 89% and 237% compared to the values before forging.</p>

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Effect of Casting-Forging Integrated Forming Technology on the Microstructure and Properties of a 6061 Aluminum Alloy Automobile Brake Caliper Housing

  • 期刊论文

  • 发表日期：

    2025年8月7日

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  • Xiaochun Sheng,
  • Tianfeng Zhang,
  • Keming Liu,
  • Zhi Shen,
  • Yong Peng,
  • Hongli Xu,
  • Haitao Zhou,
  • Andrej Atrens

摘要

The influence of the casting-forging integrated forming technology on the microstructure, tensile strength and elongation of a 6061 aluminum alloy automobile brake caliper housing was investigated using scanning electron microscopy, energy dispersive spectroscopy and tensile testing. At constant forging start-up times, both the tensile strength and the elongation of the brake caliper housing increased with increasing forging force up to 270 MPa. At constant forging force, both the tensile strength and the elongation of the brake caliper housing first increased with increasing forging start-up time, but then decreased. At a forging force of 270 MPa and a forging start-up time of 4 s, the brake caliper housing had superior comprehensive mechanical properties, with a tensile strength of 354 MPa and an elongation of 12%, which were an increase of 89% and 237% compared to the values before forging.