A grinding method for high-precision hemispherical through-hole of beryllium material
A hemispherical through hole and grinding method technology, which is applied in the field of high-precision grinding of special materials, can solve the problems of large grinding degree of the hole, scratching the surface of the inner hole, and uneven grinding degree, so as to improve the surface roughness of the inner hole and The roundness accuracy of each section, the improvement of grinding reliability, and the effect of improving surface roughness
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[0044] The beryllium hemisphere has a trapezoidal through hole, the diameter of the upper through hole is Φ4.5mm, and the diameter of the lower through hole is Φ8mm, and the lower part is ground for the upper through hole, such as figure 1 shown;
[0045] (1) Grinding rod design and training
[0046] Selection and design of grinding rods. According to the material characteristics of the hemisphere, the pearlitic high phosphorus cast iron with no pores, sand holes, impurities and hard spots on the surface is selected as the grinding rod material. The schematic diagram of the grinding rod is attached image 3 shown. One end of the grinding rod is a smooth cylinder, which is convenient for the operator to hold or clamp. The main body of the grinding rod is a cylinder with an equidistant spiral sand storage tank. The diameter of the cylinder matches the hemispherical through hole, and the diameter is the hemispherical diameter. 4.505mm, the cylindricity of the finish car cyli...
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