In the process of precision machining, the selection of blank is very important. If the blank material is not qualified, it will lead to the abnormality of the whole production line and the product can not be used at all. So how should we choose the blank material in the processing.

1. If it is casting production, then the selected blank can be of various shapes, and there are two kinds of casting methods. One is manual molding of wood mold, and the other is metal film modeling. The former has low precision and large surface allowance, and the production efficiency can not be improved. The latter has higher production efficiency and higher precision Yes, the cost of equipment is not cheap.

2. If the forging blank with higher requirements is processed, then free forging and die forging can be selected. The former one is suitable for relatively small blank, while the latter is suitable for forging blank with high precision. Therefore, we should choose which forging method according to the specific situation.

3. If the blank is profile, hot rolling or cold drawing should be selected according to the situation. The accuracy of hot-rolled profile is relatively low, but the advantage is that the price is relatively cheap and can be used in the production of parts blank. The size of cold drawn profile is relatively small, and the precision requirements are relatively high, which can achieve the effect of automatic feeding. However, its price is relatively high It is suitable for the blank which needs mass production.

In a word, we should choose the appropriate blank according to the specific processing technology and the parts to be produced. Dalian Hanpu New Precision Machinery Co., Ltd. provides one-stop machining solutions, welcome to consult.