双性将军粗壮h灌满怀孕,思敏全集1一5正版免费看,诱人小峓子5中字巴巴鱼汤饭,善良娇妻让农民工发泄

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

What is precision machining?

時間:2021-07-01瀏覽次數(shù):4410
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: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

亚洲av片在线观看| 欧美人与鲁交大毛片免费| xxxxxl日本17上线| 亚洲春色av无码专区456| 亚洲av无码一区二区三区网站 | 男人狂躁进女人免费视频| 50多岁岳不让我戴套| 一本大道无码人妻精品专区| 四川妇女bbbwbbbwm| 成免费crm在线看系统| 免费国产黄网站在线观看视频| 男人一边吃奶一边弄下边好爽| 亚洲国产成人精品无码区花野真一| 亚洲欧美另类日本人人澡| 可以免费看美女隐私的app| 欧美iphonexsmax免费| www四虎最新成人永久网站| 亚洲国产精品特色大片观看完整版| 供人泄欲玩弄的妓女h| 久久久亚洲一区二区三区| 亚洲女初尝黑人巨高清| 猛烈h继攵禁忌h| 国产大片免费线上观看| 久久人人爽人人片AV人成| 四个人客厅交换作爱| 实拍各种胸走光见奶头| 亚洲综合在线另类色区奇米| 国产欧美精品123区发布| 中文字幕人妻无码专区| 保守人妻被领导征服身体| 久艾草久久综合精品无码国产 | 日本三级在线观看| 成在人线av无码免费| 人妻被按摩师玩弄到潮喷| 日本影片和韩国影片推荐| 玩两个丰满老熟女久久网| hd老熟女bbn老淑女| 差差漫画免费看入口弹窗页面| 与子敌伦刺激对白亂輪亂性| 日韩免费高清播放器| 草色噜噜噜av在线观看香蕉|