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在机械零件生产中,棱角倒元半径一般比较小。在没有特殊要求的情况下,棱角倒元只是为了防止碰伤,装配顺利。有的零件对倒角有一定要求。如燕尾形零件的配合,凸形的棱角倒元半径不得小于凹形的棱角倒元半径,否则,配合时就会发生棱角干涉。加工这些零件用的刀、量具的棱角,如果不按照图纸规定的倒元半径去制造和验收,轻者会引起零件交验上的矛盾(多发生在两块同样量具,倒元半径悬殊),重者会由于棱角的干涉而影响精度和性能。
In the production of mechanical parts, corner inverted radius is generally relatively small. In the absence of special requirements, the corner inverted element just to prevent bumps, assembly smoothly. Some parts of the chamfer have certain requirements. Such as chevron parts with the convex edge of the inverse element radius not less than the concave edge of the inverted element radius, otherwise, will occur when the corner interference. Processing of these parts with the knife, measuring the edges and corners, if not in accordance with the provisions of the drawing on the radius of the inverted element to create and acceptance, the light will cause contradictions on the part inspection (occurred in two identical measuring tools, inverted Yuan radius difference) In severe cases, the accuracy and performance will be affected due to the angular interference.