鈑金加工是鈑金制品成形的一道重要的工序，鈑金加工的主要工序有剪切、折彎扣邊、彎曲成型等，在零件加工過程中避免零件的變形顯得尤為重要。那么鈑金加工存在誤差問題?下面山東鈑金制造廠家為你講解。

Sheet metal processing is an important process of sheet metal product forming. The main processes of sheet metal processing include shearing, bending and edge buckling, bending and forming, etc. It is particularly important to avoid the deformation of parts in the process of part processing. Then there is an error problem in sheet metal processing? Next, Shandong sheet metal manufacturer will explain to you.

一、內(nèi)力作用導致零件加工精度改變

1、 The machining accuracy of parts is changed due to internal force

車床加工時，通常是利用向心力的作用，用車床的三爪或者四爪卡盤，把零件卡緊，然后對鈑金零件進行加工。同時，為了確保零件在受力時不松動、減小內(nèi)徑向力的作用，要使夾緊力大于鈑金的切削力。夾緊力隨著切削力的加大而加大，隨之減小而減小。

When lathe is used for processing, it is usually to use the centripetal force to clamp the parts with the three jaw or four jaw chuck of the lathe, and then process the sheet metal parts. At the same time, in order to ensure that the parts are not loose when subjected to force and reduce the role of internal force, the clamping force should be greater than the cutting force of sheet metal. The clamping force increases with the increase of cutting force, and decreases with the decrease.

這樣的操作才能使鈑金零件在加工過程中受力穩(wěn)定。但是，在三爪或者四爪卡盤松開后，加工出來的鈑金零件就會與原來的相差甚遠，有的呈現(xiàn)多邊形，有的呈現(xiàn)橢圓形，出現(xiàn)較大偏差。

This operation can make the sheet metal parts stable in the process of processing. However, after the three jaw or four jaw chuck is loosened, the processed sheet metal parts will be far different from the original ones, some of which are polygonal, and some are elliptical, with a large deviation.

二、熱處理加工后容易產(chǎn)生變形問題

2、 Deformation is easy to occur after heat treatment

對于薄片類的鈑金零件，由于其長徑非常大，在對其進行熱處理后容易出現(xiàn)草帽彎曲的狀況。一方面會出現(xiàn)中間鼓出的現(xiàn)象，平面偏差加大，另一方面由于各種外界因素的影響，使零件產(chǎn)生彎曲現(xiàn)象。

For sheet metal parts with thin sheets, due to their large length and diameter, straw hats are prone to bend after heat treatment. On the one hand, there will be bulge in the middle, and the plane deviation will increase. On the other hand, due to various external factors, parts will be bent.

這些變形問題的產(chǎn)生不僅是由于熱處理后的零件內(nèi)應力發(fā)生了變化，還有操作人員的知識不扎實，不太了解零件的結(jié)構(gòu)穩(wěn)定性，從而加大了零件變形的概率。

These deformation problems are not only caused by the changes in the internal stress of the parts after heat treatment, but also because the operators do not have solid knowledge and do not know much about the structural stability of the parts, thus increasing the probability of part deformation.

鈑金加工存在哪些誤差問題？從兩個方面來講解了一番，希望能夠給您好的幫助，更多相關(guān)事項就來我們網(wǎng)站http://m.faxuemingjia.com咨詢吧！

What error problems exist in sheet metal processing? I explained it from two aspects, and I hope I can help you. More related matters will come to our website http://m.faxuemingjia.com Consult!