FREE性欧美HD另类精品,唐舞桐灌满jing液h斗罗h,国产97人人人超碰超爽,丰腴饱满的极品熟妇

歡迎進入深圳市錦鴻宇實業(yè)有限公司官網(wǎng)!
News
NewsNews

Four principles of machining jinhongyu precision mechanical parts

時間:2023-03-31瀏覽次數(shù):3597

What are the general principles of fine mechanical parts processing? What is the order of processing? I believe this is a topic that all fine processing companies are very concerned about. In simple terms, it can be divided into four principles: benchmark first, division of processing stages, first face and then hole, and smooth processing.


1. Benchmark first


That is, the reference surface is processed first. During the machining process of the part, the surface as the positioning reference should be processed first, so as to provide a precise reference for the subsequent processing as soon as possible.


2. Divide the processing stages


Surfaces with high mechanical processing quality requirements are divided into processing stages, which can generally be divided into three stages: rough processing, semi-finishing and finishing. Mainly to ensure the processing quality of fine mechanical parts; facilitate the scientific application of equipment; facilitate the installation of heat treatment procedures; and facilitate the discovery of blank defects.


3. Face before hole


For parts such as box body, bracket and connecting rod, the plane should be processed first and then the hole should be processed. In this way, the holes can be positioned on the plane to ensure the accuracy of the plane and the position of the hole, and the processing of the holes on the plane is convenient.


4. Finishing


Finishing processing of the main surface, such as grinding, honing, fine grinding, rolling processing, etc., should be placed at the end of the process road. The general guidelines for drawing up fine parts processing technology roads and the formulation of fine parts processing technology regulations can be roughly divided into two links. The first is to draw up the process path of parts processing, and then confirm the process size of each process, the equipment and process equipment used, the cutting standards, and the quota of working hours.

服務(wù)熱線:13631565136
手機:18926579610
電話:0755-26740010
郵箱:senyuanmoju@126.com
地址:廣東省深圳市寶安區(qū)石巖街道水田工業(yè)區(qū)寶石東路123號7棟1樓

掃一掃關(guān)注我們

日本免费一区二区三区视频观看| 真人试看体验区120秒| 丝瓜视频在线观看| 啊轻点灬大巴太粗太长了视频免费| 18禁白丝喷水视频www视频| 两根一起进去好紧好涨 | 久久久久亚洲精品中文字幕| 久久午夜无码鲁丝片| 无码a片| 婉莹满足了十几个农民工| 中文字幕精品久久久乱码乱码| 两个人的免费视频| 校花娇喘呻吟校长陈若雪视频| 办公室被绑奶头调教羞辱| 亚洲精品无码久久| 男宠用下面叫醒公主h| 第072章三美妇云雨风流| 欧美69久成人做爰视频| 国产成人精品一区二区三区| 国产一区二区三区播放心情潘金莲| 食戟之灵第二季| 国产成人精品无码一区二区| 小受被多男摁住灌浓精a片小说| 亚洲av无码亚洲国产一区| 欧美黑人xxxx高潮猛交| 扒开腿挺进湿润的花苞| 亚洲乱码一区二区三区香蕉| 玩弄chinese丰满人妻videos| 艳肉观音性三级dvd| 精品成在人线av无码免费看| 与狐说by萝卜药丸了| 女警乳链乳环蒂环铃铛调教| 亚洲尺码与欧洲尺码区别入口跳转| 欧美大片免费播放器| 美人双性受h多人运动np| 重口老太大和小伙乱| 丰满雪白人妻人爽av精品| 成熟护士长的蚌肉的滋味| 日本无码小泬粉嫩有套在线| 40厘米黑人与中国女人| wwxx在线观看免费|