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设计翻边工序时,应该确定有无达到规定高度之侧壁的可能性和为此所需的毛料孔尺寸.翻出规定侧壁尺寸之前的孔的尺寸,通常由毛料被翻部分宽度和沿中綫的侧壁展开长度相等的条件决定。因此在侧壁的高度相同时,毛料上孔的轮廓就应孩与侧壁輪廓綫等距(卽毛料的被翻部分寬度相等). 在輪廓與側壁輪廓等距及輪廓形狀由直綫和曲綫部分組成的作圓形翻邊中,通常不能得到在輪廊各部分都相同的側壁高度@說明了實用的,根据給禺的侧壁尺寸来决定毛料孔尺寸的不准确性. 首先让我们来看一下各种因素对轮廓曲綫部分侧壁高度的影响.
When designing the burring process, the possibility of having a sidewall of a given height or not, and the size of the woolen hole required for that purpose, should be determined.The size of the hole before the specified sidewall size is flanked is usually determined by the width and the distance The midline sidewall expansion length equal to the conditions of the decision. Therefore, when the height of the side wall is the same, the outline of the hole in the wool should be equidistant from the contour of the side wall (the width of the turned-up portion of the woolen material is equal.) When the contour and the contour of the side wall are equidistant and the contour shape consists of the straight and curved portions It is not practical to find the side wall height in all parts of the vestibule. It is practical to determine the size of the woolen hole inaccuracy based on the size of the side wall. Take a look at the effects of various factors on the height of the profiled sidewalls.