预铸式铝合金缸体干缸套开裂问题的研究

来源 :第19届亚太汽车工程年会暨2017中国汽车工程学会年会 | 被引量 : 0次 | 上传用户：shengyan1205

【摘要】

：

某发动机在试验后发现缸套缸间位置靠近顶平面处发生开裂,通过现象分析、仿真以及试验测量,确定缸套开裂原因.其一,缸体铸造脱模时产生的缸套内孔表面拉伤,且前后端方向内孔拉伤更严重;其二,缸体冷却过程缸套因所受各向压力不均导致变形,前后端方向缸套直径变小导致内部表面受到较大拉应力,在拉伤位置形成应力集中.

【作者】

：

熊盛林李建龙刘松唐元媛徐天添王静秋黄洪浪王泽忠伊斯武

【机构】

：

东风汽车公司技术中心国家汽车质量监督检验中心襄阳

【出处】

：

第19届亚太汽车工程年会暨2017中国汽车工程学会年会

【发表日期】

：

2017年7期

【关键词】

：

汽车发动机预铸式铝合金缸体缸套开裂应力计算

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预铸式铝合金缸体干缸套开裂问题的研究

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