Sheet Metal Prototyping industry development
Sheet Metal Prototyping mold standard parts suitable for socialization of large quantities of specialized production, but China has long been scattered, chaotic, poor situation.
The so-called "casual", mainly Sheet Metal Prototyping mold parts factory too much too much, very few to form the economic volume.
The so-called "chaos", mainly the standard chaos, enterprises often according to the national standard, the standard and the past few parts of the standard and some enterprises standard production. At the same time, the Sheet Metal Prototyping mold standard parts market chaos, disorderly competition caused many adverse consequences.
The so-called "poor", is the sheet metal mold standard parts of the poor quality and poor efficiency of the enterprise.
With the involvement of foreign-funded enterprises, although this situation has improved, but still did not fundamentally change. Production and demand, there is a big gap. Some enterprises do not work hard from the quality and level, but only in the price of making an article, resulting in excessive price after the resulting cut corners, fish, the quality of decline, which brought disaster to many enterprises, making sheet metal mold standard parts overall profit margins decline, Even to the edge of the loss. The main reason is that China's Sheet Metal Prototyping mold standardization work started late, coupled with publicity, implementation and promotion efforts, so the standardization of Sheet Metal Prototyping die behind the production, but also behind the world's many industrial developed countries.
In the purchase of Sheet Metal Prototyping once the choice of improper, production costs will rise, Sheet Metal Prototyping can not be expected to recover the cost. Therefore, there are several factors to be measured in the decision to weigh.
Sheet Metal Prototyping
The first important thing to consider is the parts you want to produce, the point is to buy a machine to complete the task and the shortest table, the smallest number of machines.
Carefully consider the material grade and the maximum processing thickness and length. If most of the work is a low-carbon steel with a thickness of 16 gauge and a maximum length of 10 feet (3.048 meters), the free bending force is no more than 50 tons. However, if you are engaged in a large number of bottom concave mold forming, perhaps should consider a 160 tonnage of the machine.
Assume that the thickest material is 1/4 inch, 10 feet free bend requires 200 tons, and the bottom mold bending (correction bending) at least 600 tons. If most of the workpieces are 5 feet or less, the tonnage is almost halved, thus greatly reducing the purchase cost. The length of the part is important to determine the specifications of the new machine.
Sheet Metal Prototyping flexible change
Under the same load, the 10-foot machine bench and the slider's flexion are four times the 5-foot machine. This means that shorter machines require less gasket adjustment to produce qualified parts. Reducing the gasket adjustment also shortens the preparation time.
Material grades are also a key factor. Compared with low-carbon steel, the required load of stainless steel is usually increased by about 50%, while most brands of soft aluminum reduced by about 50%. You can get the tonnage table of the machine at any time from the Sheet Metal Prototyping, which shows the estimated tonnage per foot length at different thicknesses and materials.
Sheet Metal Prototyping bending radius
With free bending, the bending radius is 0.156 times the opening distance of the die. In the free bending process, the die opening should be 8 times the thickness of the metal material. For example, when using a 1/2 inch (0.0127 m) opening to form a 16 gauge low carbon steel, the part has a bend radius of about 0.078 inches. If the bending radius is almost as small as the material thickness, it is necessary to carry out the bottom die forming. However, the pressure required for the bottom die is about four times greater than the free bend.