Elbow why such rapid development in foreign countries, mainly based on the following two advantages:
1, can replace part of machining products, and than mechanical product, casting, forging structure light weight, saving material;
2, saving than mechanical processing products process, working hours, reduce the cost.
Japan’s material information on a truck with a connecting rod machining method and the method of elbow made the comparison, the same weight is different, the material of product weight in mechanical processing method is 10.35 KG, and made the bend parts with 9.32 KG, saves materials; Machining the parts of the unit price of 240 yen, if use elbow, the unit price is 140 yen. So the elbow method is of great advantage in price, almost was reduced by 50%. Tell from the performance, elbow method is superior to mechanical processing method.
Source: Zhejiang Yaang Pipe Industry Co., Limited (www.yaang.com)