大連數控加工廠，承接各種機械加工，精密零部件加工，數控加工，模具零部件加工，齒輪加工等，我們擁有一流的服務和高品質的設備，為您的產品帶來高品質的產出，您有任何數控加工的產品可以給我們致電

    機械加工于外圓和孔等旋轉表面而言，加工余量是從直徑上考慮的，故稱為對稱余量（即雙邊余量），即實際所切除的金屬層厚度是直徑上的加工余量之半。平面的加工余量則是單邊余量，它等于實際所切除的金屬層厚度。在工件上留加工余量的目的是為了切除上一道工序所留下來的加工誤差和表面缺陷，加工需要的機械由數顯銑床、數顯成型磨床、數顯車床、電火花機、萬能磨床、加工中心、激光焊接、中常用機械絲、快走絲、慢走絲、外圓磨床。

Dalian CNC Processing Factory undertakes various mechanical processing, precision component processing, CNC processing, mold component processing, gear processing, etc. We have first-class services and high-quality equipment to bring high-quality output to your products. If you have any CNC processed products, please feel free to call us

For mechanical machining on rotating surfaces such as outer circles and holes, the machining allowance is considered from the diameter, hence it is called symmetrical allowance (i.e. bilateral allowance), which means that the actual thickness of the metal layer cut is half of the machining allowance on the diameter. The machining allowance of a flat surface is the unilateral allowance, which is equal to the actual thickness of the metal layer cut. The purpose of leaving machining allowance on the workpiece is to remove machining errors and surface defects left by the previous process. The required machinery for machining includes digital milling machines, digital forming grinders, digital lathes, electric discharge machines, universal grinders, machining centers, laser welding, commonly used mechanical wires, fast wire, slow wire, and cylindrical grinders.