Low-roughness processing method and equipment for zirconia ceramic structural parts

Abstract

The invention provides a low-roughness processing method for zirconia ceramic structural parts. The low-roughness processing method comprises the following steps that first, a grinding wheel rod I isused for initial repairing; second, a grinding wheel rod II is used for middle repairing; and third, a milling cutter is used for lateral layering processing, and the product is obtained; and the calculating mode of the layer number of layering processing comprises the formula that the layer number M = the required processed balance P on the zirconia ceramic structural parts after middle repairingis finished / the amount of feed N of a single milling cutter. By applying the technical scheme, the processing method comprises the steps of initial repairing, middle repairing and lateral layeringprocessing through the milling cutter, the technology steps are simplified, technology requirements are easily controlled, the required roughness requirements can be met, and it can be ensured that the qualified rate of the product is 98% or above. The invention further provides equipment adopted by low-roughness processing of the zirconia ceramic structural parts. The equipment comprises the milling cutter and a CNC machine tool. Assembling of the equipment is convenient, the CNC machine tool is adopted to control the processing parameters, and it is ensured that the qualified rates of the one-time size and the roughness are 98% or above.

Description

technical field [0001] The invention relates to the technical field of ceramic processing, in particular to a low-roughness processing method for a zirconia ceramic structural part and equipment used therefor. Background technique [0002] As the leader of structural ceramics and functional ceramics, zirconia ceramics are a material with low toughness, high temperature resistance, wear resistance, corrosion resistance, excellent heat insulation performance and a thermal expansion coefficient close to steel. Adding three oxides to ceramics Dialuminum can make its hardness reach more than 9 on the Mohs scale, second only to diamond. Due to the above-mentioned characteristics of zirconia ceramics, it is very suitable for making structural parts such as mobile phone middle frames and watch cases. [0003] Since both mobile phones and watches must have certain waterproof performance (especially on watches), if the waterproof performance is good, the roughness of the waterproof su...

AI Technical Summary

Problems solved by technology

Although the spiral cutting method can improve the roughness, it also has the following disadvantages: (1) the processing time is too long, resulting in low processing efficiency and increased machine cost; (2) the spiral cutting method is adopted, and the grinding wheel Rod tip wears out too quickly, resulting in deformed or poorly sized product