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FAN Deguo. Fracture Causes of Hub Bolts during Machining[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2020, 56(10): 51-53,57. DOI: 10.11973/lhjy-wl202010012
Citation: FAN Deguo. Fracture Causes of Hub Bolts during Machining[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2020, 56(10): 51-53,57. DOI: 10.11973/lhjy-wl202010012
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Fracture Causes of Hub Bolts during Machining

  • Weifang Special Steel Group Co., Ltd., Weifang 261201, China

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  • Received Date: August 02, 2020
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    • Abstract
  • A small number of fracture accidents occurred in the turning process of 40Cr steel hub bolts produced by a factory. The fracture causes of the hub bolts were analyzed by means of fracture analysis, chemical composition analysis, metallographic examination and hardness test. The results show that the hub bolts were burned locally in the heating furnace, which reduced the intergranular adhesion of this part, and caused brittle fracture of the bolts in the turning process.
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    • References (4)
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    龚丹梅,袁鹏斌,余世杰,等.S135钢级钻杆管体断裂原因分析[J].金属热处理,2013,38(7):173-175.
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    冯银平,王云飞,魏彩丽,等.扇形板螺栓断裂失效分析[J].拖拉机与农用运输机,2017,44(5):57-58.
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