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在生产过程中,很多产品工件的厚度要求严格的控制。如做为结构件的箱体,在化铣过程中对化铣厚度要求严格的控制。化铣程度不够,厚度过厚重量增加,影响整弹的运载能力;太薄了则又影响弹体强度。再如旋压新工艺,工件经旋压加工后是否均匀,需对工件厚度进行较为精确的测量。这些工件大多体积较大,一般量具、卡具难于进行测量。目前国内有关的商品仪器如 CCH—1超声测厚仪无论在测量范围还是在测量精度
In the production process, many products require strict control of the thickness of the workpiece. Such as the structure of the box as the milling process in the milling thickness of the strict control. Milling degree is not enough, the thickness is too thick and weight increases, affecting the carrying capacity of the whole bullet; too thin and then affect the body strength. Another example is the new spinning process, the workpiece after spinning uniform, the workpiece thickness to be more accurate measurements. Most of these large parts of the workpiece, the general measuring tools, tools difficult to measure. At present, the relevant domestic commodity instruments such as CCH-1 ultrasonic thickness gauge in the measurement range or in the measurement accuracy