Sheet Metal Stamping vs CNC Machining

In the modern manufacturing industry, sheet metal stamping and CNC machining of these two processes are very widely used, both of which are used to produce precision parts, but the operation of these two processes, the scope of application, as well as technology is not the same, sheet metal processing is mainly through the stamping, bending or laser cutting of products. And cnc processing is the use of computer technology to control machine tools for cutting, milling, drilling and other ways. So today jeek for you to introduce the difference between the two it.

 

Sheet metal stamping is the use of stamping molds, metal processing process, the basic principle is that the equipment applies pressure to it, so that the metal is bent, shaped in the mold. So that it obtains the corresponding parts, then it can also be said that if the mold is set up well, then its productivity will be high, so as to carry out mass production.

 

Of course, the design and manufacture of the mold will affect the quality and productivity of the stamped parts, so a set of high-quality molds should have high precision, high hardness, good abrasion resistance and corrosion resistance and other characteristics. Stamping equipment is also very important, different stamping parts require different specifications and types of stamping equipment. Therefore, it can only produce large quantities of metal products with simple shapes and large sizes, such as automobile body shells.

 

CNC machining is to process the workpiece with the help of CNC equipment, and it can be said that CNC equipment is the greatest product of manufacturing in the twentieth century. It is through the preparation of CNC programs to control the movement of the machine tool, especially in the five-axis, can be said to be no matter how complex the workpiece, in the preparation of complex programs, can be accurately processed out of any desired shape and size.

 

General aerospace, most of the automotive parts require a high degree of precision, and the shape of the part is also very complex, which can only be processed with CNC machining, in small quantities, multiple varieties, complex parts, CNC machining has an absolute advantage.

 

In the vast field of modern manufacturing, sheet metal stamping and CNC machining is like two bright pearls, glittering, and become the core technology to promote the continuous development of manufacturing.

 

Sheet metal stamping technology is known for its high efficiency, precision and mass production capability. Through the role of stamping dies, sheet metal is quickly and accurately processed into parts of various shapes and sizes. This type of processing enables one-time molding of complex shapes, which greatly improves production efficiency and saves a lot of time and labor costs. Most of the structural parts of automobiles are stamped through sheet metal, such as: doors, roofs, body side panels and so on.

 

CNC machining is to automation and flexibility and occupy an important position in modern manufacturing. Workers with the help of computer numerical control system, machine tools in accordance with the prearranged program automatically for processing, which contains most of the milling, drilling, etc., CNC machining can achieve more complex processing pattern and processing accuracy. Generally manufacturing aerospace core parts and satellite parts.

 

 

Problem Performance: During the stamping process, the material may be deformed locally or as a whole, affecting the dimensional accuracy and shape precision of the part.

Problem Solution: Optimize the stamping process parameters, such as stamping speed, punching pressure, die clearance, etc., to avoid excessive impact force leading to material deformation, and then choose to select materials with good plasticity and toughness. If possible, it is recommended to strengthen the design and manufacturing precision of the mold, so that there is a certain gap in the middle to reduce the friction and stress concentration of the material in the stamping process.

 

Problem Performance: The size of the stamped part deviates from the designed size.

Problem Solution: Maintain the stamping equipment, use accurate molds and improve the size of the molds. If the deviation occurs during the stamping process, timely adjustment is sufficient.

 

Problem: Sudden breakage of the material in the stamping mold.

Problem Solution: Solve the quality of the material, change the high quality material, or heat treat the surface of the mold to improve the hardness and wear resistance of the mold.

 

Problem performance: Due to the problem of time, the tool is gradually worn out during the machining process, which affects the quality of its machining.

Problem solution: you can choose a good wear resistance and cutting performance of better tools, of course, can not be a long time to cut, the need for regular adherence to Oh.

 

Problem performance: the machining accuracy does not meet the desired requirements.

Problem solving: Use reasonable machining path and cutting parameters to reduce machining errors.

 

Problem performance: the surface roughness of the parts does not meet the requirements, scratches, burrs and other problems.

Problem Solution: Use cutting fluid to reduce the friction between the tool and the workpiece, and the cutting feed parameter is also slightly adjusted to reduce the roughness brought about by the problem.

 

Jeek provides a series of sheet metal stamping manufacturing process as well as cnc machining, you just need to click on the inquiry, send the size or upload your file to express your needs, we will contact and quote in time.