Why the elbow in such rapid development abroad, mainly based on the following two advantages: 1, instead of some machined products, but also compared to machined parts, castings, forged structural parts light weight, saving materials; 2, compared with machining products to save the process , Working hours, reduce the cost of the workpiece. Japanese material sector data describes a truck connecting rod machining method compared with the elbow method, the same product weight with the material weight is different, machining method is 10.35KG, and the elbow to do this part Then use 9.32KG, saving material; machined parts priced at 240 yen, if the elbow is priced at 140 yen. So elbow method is very competitive in price, nearly reduced by 50%. From the performance point of view, elbow method is better than machining.
