99久久精品国产一区二区三区,欧美黑人又大又粗XXXXX,WWW国产精品内射,男s严厉调教女m小说

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):4385
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

人妻激情偷乱一区二区三区| 粗大黑头紫大黑头紫挤进 | 国产AⅤ无码专区亚洲AV| 法国艳妇LARALATEX| 久久人人爽人人爽人人片| 麻豆一区二区99久久久久| 中文字幕AV人妻少妇一区二区 | 色戒电影未删减完整版免费观看 | 国产精品特级毛片一区二区三区 | 97久久精品午夜一区二区| 久久久久久精品免费无码| 亚洲精品无码永久在线观看你懂的| 性久久久久久| 迈开腿让我要吃尝尝你的草莓| 欧美性猛交XXXX乱大交蜜桃| 久久精品国产亚洲av无码| 国模精品一区二区三区| 女人18毛片A级毛片免费视频| 老公一到晚上就日不停| 呦VODAFONEWIFI高清| 国产农村又大又粗A片| 国产激情一区二区三区| 久久AV无码精品人妻系列| 欧美人体艺术视频| 成人欧美一区二区三区1314| 亚洲欧美精品午睡沙发| 日韩欧美一区二区三区免费观看| 国产96在线 | 亚洲| 含着奶头搓揉深深挺进P漫画| 国产毛多女人视频| 成人漫画网站| 我趁老师睡觉摸她奶脱她内裤| 人妻丰满AV无码中文字幕| 丁香五月色情久久久久| 驯服人妻HD中字日本| 免费在线观看成人电影| 97久久精品午夜一区二区| 深度肠交FISTING狂叫| 少妇厨房愉情理伦BD在线观看| 女人和公豬交内谢| 国产在线综合色视频|