bl道具play珠串震珠强迫,精品国产乱码一区二区三区,国产精品福利一区二区,最近高清中文在线字幕在线观看

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):4409
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(hào)7棟1樓

掃一掃關(guān)注我們

日本丰满熟妇无码亚洲影视下载 | 国产精品久久久久久吹潮| 2023国产麻豆剧传媒鱿鱼游戏| 粗大的内捧猛烈进出的视频| 制服 中文 人妻 字幕| 巨大黑人极品videos精品| 无码欧精品亚洲日韩一区| 国产精品情侣呻吟对白视频| 印度肥婆丰满bbw| 国精品无码人妻一区二区三区 | 欧美成人乱码视频xxxx| 精品人妻少妇一区二区三区在线| 夜躁狠狠综合亚洲色噜噜狠狠| 男男肠道灌水失禁play| 天天夜夜草草久久伊人69堂| 99久久蜜av毛片毛片正在| 老头的老枪又粗又长净身老枪图片| 精品久久久久| 欧美大成色WWW永久网站婷| 扒开她粉嫩的小缝尿进去h漫画| a级毛片在线观看| 被男狂揉吃奶胸60分钟视频 | 双乳被老汉揉搓玩弄a片小说| 成全视频在线观看免费观看| 色噜噜狠狠一区二区三区果冻| 国产av精品国语对白国产| 色噜噜av亚洲色一区二区| 在厨房被c到高潮a毛片奶水| 影音先锋资源站| 久久久久99精品国产片| 岳的大肥坹视频hd| 亚洲av综合色区无码一区爱av| 白洁少妇高义全文阅读 | 自己撅起来乖乖挨c烂h| 黄金网站在线进入| 久久亚洲精品中文字幕无男同| 宝贝腿开大点我添添你| 国产av网站| 国产精品人成视频免费播放| 亚洲 国产 另类 无码 日韩| av片在线观看|