18禁在线无码无遮挡观看视频,天天躁日日躁AAAAXXXX,色综合久久88色综合天天,蜜臀AV无码一区二区三区

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

What is precision machining?

時(shí)間:2021-07-01瀏覽次數(shù):4024
Fine machining is a kind of machining, which is a machining process in which the workpiece meets the position tolerance required by the drawing. When the workpiece undergoes this process, its performance characteristics and appearance structure will change to a certain extent.


With mechanical processing, there will naturally be corresponding parts. As a discipline of mechanical majors, mechanical parts design is one of the most sought-after majors for liberal arts students, and it is also one of the most representative engineering disciplines; at present, this major Not only good science and engineering knowledge is required, but also excellent drawing ability and spatial imagination ability. And due to the development of domestic industry and the changing demand from time to time, the requirements for personnel in the machining industry are also increasing from time to time. The employment rate of mechanical majors can be improved. Reach 95%.


With the development and progress of domestic industries, machining has changed a lot, and fine machining technology has also emerged. Many industries such as home appliances, automobiles, hardware, and products used in medical manufacturing more or less use fine parts. It may be just a component, or it may be a central component of a mechanical device. All in all, it is very important and plays an irreplaceable role.


There are two processes for fine mechanical processing and manufacturing of these fine parts, one is hot processing and the other is cold processing, and hot processing involves heat treatment and other methods to make the parts undergo chemical or physical changes under very warm conditions to meet the requirements of shape changes. . For cold working, there is no chemical and physical change at room temperature to meet the requirements of shape change, and cutting technology is generally used. In the future, under the premise of satisfying processing and environmental protection, fine mechanical processing will be separated from technology and become an important and sustainable science.


Can you really understand what the finely machined non-standard parts are?


Non-standard parts, I believe that the machinery manufacturing industry has the most contact and demand. Most of the specifications and parameters of the parts in the automation equipment or the jigs used in processing and inspection tools are controlled by the enterprise. Therefore, such companies will hand over the drawings of the required parts to the corresponding fine machining manufacturers for processing to meet the geometric tolerances required by the drawings.


From the above text, we can draw a vague concept. Non-standard parts are related to standard parts. It does not have the standardized structure, size, logo and drawing method like standard parts. Non-standard parts mainly The country has not set strict standard specifications, there are no relevant parameter rules, and the accessories are freely controlled by enterprises according to their own needs. Therefore, at a certain level, the processing cost is higher than the standard parts.


At present, there is no standard classification of non-standard parts. They are roughly classified into metal non-standard parts and non-metal non-standard parts according to their materials. Metal parts are the original materials of metals, such as brass, aluminum, etc., and tolerance requirements and brightness are determined by Customer rules, complicated procedures, non-metal parts, that is, the original materials are plastic, wood, stone, etc.

服務(wù)熱線:13631565136
手機(jī):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

大乳BOOBS巨大吃奶乳水| 国产成人无码久久久精品一| 国内少妇偷人精品视频免费| 国模吧无码一区二区三区| 免费雷电将军乳液VX网站| 99国产精品白浆在线观看免费 | 国产精品国产三级国产AV中文| 粗大黑人巨精大战欧美成人| 一二三四社区在线中文| 婷婷综合久久中文字幕蜜桃三电影| 日本A级作爱片金瓶双艳| 韩国v欧美v亚洲v日本v| 国产一区二区三区在线电影| 天堂在/线在线资源| 亚洲精品久久久久AV无码| いっぱいしぼっちゃうぞ在线| 久久人人爽人人爽人人AV | 野外妓女脱裤子让老头玩| 少妇被又大又粗猛烈进出视频软件| 久久免费看黄A级毛片| 丰满女老板BD高清A片| 国产免费观看黄AV片| 男s严厉调教女m小说| 午夜伦伦电影理论片A片| 妺妺窝人体色WWW在线观看| 国产真实的和子乱拍在线观看| 99久久综合狠狠综合久久| 少妇把腿扒开让我爽爽视频| 小蓝视频男男勇敢做自己最新| 工头搡老女人老妇女老熟女| 国产AV无码亚洲AV无码| 久久久久99精品成人片直播| 亚洲乱码爆乳精品成人毛片| 国产精品久久久久一区二区三区| 日韩人妻无码精品A片免费不卡| 亚洲AV无码国产精品久久不卡| 亚洲国产精品成人久久久| 一区二区三区中文字幕| 扒开腿狂躁女人爽出白浆A片| 无码精品人妻一区二区三区影院| 揉捏新婚少妇高耸的双乳|