NEWS CENTER
1.設(shè)備選擇要合理。粗機(jī)械零件加工主要是切斷了大多數(shù)的機(jī)械加工余量,不需要高精密機(jī)械零件加工,所以粗加工應(yīng)該更大的權(quán)力和高精度的機(jī)床,完成過程堅(jiān)持使用一個(gè)相對(duì)較高的精密機(jī)器。粗糙和精加工在不同的機(jī)器上,可以充分發(fā)揮設(shè)備能力,可以延長(zhǎng)其使用壽命精密機(jī)床。
2.精密零件加工廠為了保證精密零件加工精度,粗和細(xì)機(jī)械零件加工分別從比較好的。因?yàn)楫?dāng)粗機(jī)械零件加工,切削量大,工件的切削力、夾緊力、熱、機(jī)械零件加工表面有明顯的加工硬化現(xiàn)象,工件在較大的內(nèi)應(yīng)力,如果粗糙,粗糙的機(jī)械零件加工完成后連續(xù),零件精度將很快失去了由于應(yīng)力重分布。對(duì)于一些高精密零件的機(jī)械零部件的加工。在粗加工和精加工后,還應(yīng)安排或時(shí)效處理低溫退火過程,消除內(nèi)部應(yīng)力。
3.在精密零件加工工藝路線,經(jīng)常安排熱處理過程。地點(diǎn)安排如下:熱處理過程,改善其切削加工性能的金屬,如退火、正火、回火、一般安排在機(jī)械零件加工。消除內(nèi)部應(yīng)力,如時(shí)效處理,調(diào)節(jié)治療,如總布置圖,粗加工后,但在完成。為了提高機(jī)械性能的部件,如滲碳淬火和回火,一般安排在機(jī)械零件加工。如熱處理后變形大,但也要安排比較后的加工過程。
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1. Equipment selection should be reasonable. Rough machine parts processing mainly cuts off most of the machining allowance, does not need high precision machine parts processing, so rough processing should have greater power and high precision machine, complete the process adhere to the use of a relatively high precision machine. Roughness and finish machining can give full play to the ability of equipment and prolong the service life of precision machine tools on different machines.
2. In order to ensure the precision of precision parts, the processing of rough and fine parts is the best. Because when rough mechanical parts are machined, the cutting force, clamping force, heat and machined surface of the workpiece have obvious hardening phenomenon. The workpiece has larger internal stress. If rough and rough mechanical parts are machined continuously, the accuracy of the workpiece will soon lose due to stress redistribution. For some high precision parts of the mechanical parts processing. After roughing and finishing, low temperature annealing should be arranged or aged to eliminate internal stress.
3. Heat treatment process is often arranged in the process route of precision parts. Location arrangement is as follows: heat treatment process to improve the cutting performance of metals, such as annealing, normalizing, tempering, generally arranged in the processing of mechanical parts. Eliminate internal stress, such as aging treatment, adjust treatment, such as general layout, rough processing, but after completion. In order to improve the mechanical properties of parts, such as carburizing, quenching and tempering, generally arranged in the processing of mechanical parts. If the deformation is large after heat treatment, the final processing process should also be arranged.