Cognition and machining misunderstandings during the preparation process of round tensile test bar were analyzed,and correct understanding of transition radius r was emphasized.
对圆柱形拉伸试棒制备过程中容易产生的认识及工艺误区进行了分析,强调了对加工过渡圆弧半径r的正确认识,根据多项国标推荐出适当的拉伸试棒尺寸,并提出了可行的工艺建议。
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