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

精品久久久久久无码中文字幕一区| 夜夜爽妓女888流白水| 7777久久亚洲中文字幕蜜桃| 扒开腿狂躁女人爽出白浆A片| 无码人妻一区二区三区精品视频| 69久久国产精品亚洲大片| 国产97色在线 | 国产| 我在ktv被六个男人玩一晚上| 国产精品人妻久久无码不卡| 你是我的女人中文字幕高清| 日本无码SM凌虐强制M字开腿| 公和我做爽死我死了A片| 亚洲综合一区二区三区无码| 亚洲精品中文字幕乱码三区 | 国产AV日韩A∨亚洲AV电影| 国产精品久久久久精品三级卜| 中文无码精品一区二区三区| 久久99精品国产99久久| 你的棒棒可以桶桶我的下水道| 美国ZOOM动物| 性一交一乱一伦A片| 99香蕉国产精品偷在线观看| 国产精品乱码一区二区三区| 免费完整GAY片在线播放| 欧美牲交a欧美牲交| 熟女视频一区二区在线观看| 老师露双奶头无遮挡挤奶视频 | 久久久久国产精品熟女影院| 成人漫画网站| 黑人巨摘花第一次出血| 精品国产乱码久久久久久郑州公司| 野花日本免费完整版高清版直播| 人人澡人人透人人爽| 国产AV一区二区三区| 免费无码黄十八禁网站在线观看| 男人手伸进我内衣揉我胸到爽 | 老女人重囗味456| 朝鲜女人毛多水多又紧又滑| 亚洲丰满爆乳熟女在线观看| 午夜爽喷水无码成人18禁三级 | 国产天美传媒性色AV出轨|