日本三级欧美三级人妇视频黑白配,亚洲AV无码久久精品狠狠爱,人妻少妇精品无码专区动漫,天堂…中文在线最新版在线

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):4227
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

70岁老太把腿岔开给老头摸| 宝贝∽好硬∽好爽一再来| 免费看一区二区成人A片| 99RE6在线视频精品免费下载| 亚洲国产一区二区A毛片| 99麻豆久久久国产精品免费| 人妻丰满熟妇AV无码区免| 欧洲人激情毛片无码视频| 精品国产乱码一区二区三区APP| 亚洲国产一二三精品无码| YIN乱童话集| 成人动漫在线| 精品久久久无码中文字幕边打电话| 一女被多男玩喷潮视频免费看| 久久久国产精华液2023| 人与性动交AAAABBBB| 亚洲国产精品成人无码A片软件| 亚洲第一第二第三第四第五| 欧美性XXXXX极品老少| 亚洲人成网亚洲欧洲无码久久| 精品国产自在精品国产精| 无码男男做受G片在线观看| 刮伦小说家庭小说| 超级YIN荡的高中女H文校园| 国产卡一卡二卡三高清APP| 少妇干柴烈火肉欲小说| 99久久久无码国产精品性| 青草国产精品久久久久久| 国产亚洲精品拍拍拍拍拍| 亚洲性色AV私人影院无码| 韩国精品一区二区三区无码视频| 国产我和岳拇看A片| 日本高清色WWW在线观看视频| AV香港经典三级级 在线| 337P粉嫩大胆色噜噜噜| 色综合久久精品亚洲国产| 最近日本MV字幕免费观看| 亚洲区色情区激情区电影| 婷婷国产成人精品视频小说| 国产FREEXXXX性播放麻豆| H高潮嗯啊娇喘抽搐A片视频动漫|