Thaum ua haujlwm, plaub lub hauv paus ntsiab lus hauv qab no yuav tsum ua raws:
Ua ntej, ua haujlwm tom qabua tiav
: the main surface ua tiav (grinding, honing, finishing, rolling ua, etc.) should be carried out in the final stage of the process, the surface roughness after ua Ra0.8um or more, a slight collision will damage the surface, in Japan, Germany and other countries, after ua tiav are protected with fleece cloth.
Thib ob, faib covua
stages: the surface with high quality requirements is divided into ua stages, generally can be divided into three stages: roughing, semi-finishing and finishing. Easy to arrange the main conducive to ensure the ua quality of the reasonable use of equipment heat treatment process, and easy to find the blank defects, etc.
Third, the first ua reference surface: the ua process
, the first ua as a positioning reference surface, to provide the correct benchmark for the ua of the later processes. Called the "benchmark first".
Four, before and after the hole: box, bracket and connecting rod and other components, must be processed first plane ua holes. In this way, the hole can be positioned in the plane ua, to ensure the positioning accuracy of the plane and hole, to facilitate the ua of the hole on the plane. HXTech machined qhov chaw tsim khoom
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