With the continuous updating and development of production equipment, the vast majority of the forming processes are completed on the machine. Manual methods are often used as supplementary processing and dressing, but in the case of single piece production, or some parts with more complex shapes still can not be separated from manual operation and processing. Manual forming of sheet metal parts is mainly done by using some simple type of tire, mould and various kinds of jig. The following methods are mainly adopted in hand forming: bending, edge setting, edge collecting, drawing edge, arch, winding, welding seam correction and so on.
螺纹联接 螺纹联接局域安装 容易、拆卸方便、操作简单等优点，常用于可拆的钢结构连接，它可分为螺钉联接合螺栓联接。
Sheet metal processing production: but what we share with you today is the joint method of sheet metal processing parts: welding, threaded connection, riveting joint bonding, joint methods adopted by our company: welding, threaded connection and riveting.
Welding is a process method for the welding parts to be heated locally or as a whole or to make plastic deformation of the welding parts, or to make a permanent connection between the heat and the plastic deformation. It can be divided into: manual arc welding, gas shielded arc welding, laser welding, segmental welding and contact welding. The main work of our company is gas protection welding contact welding.
Gas shielded arc welding - when the arc welding of gas is carried out, the electrode arc area and the welding pool are protected by the protective gas, and argon is used to protect the surface of the weld and the inclusions on the surface of the weld. It can be welded in any space position. It can observe the forming process of the welding with naked eyes and adjust the production efficiency.
The welding joint of the welded joint under the instantaneous heating connection part of contact welding is divided into welding, spot welding and seam welding.
Threaded connection is easy to install, easy to disassemble and easy to operate. It is commonly used in detachable steel structure connection, which can be divided into screw connection and bolt connection.
Riveting is a method of connecting parts or combinations of metal structures with rivets. There are many kinds of rivets. The rivets commonly used are closed round head rivets, closed sinking head riveting rivets, open type round head riveting rivets and open head riveting rivets.
An adhesive for bonding is used to connect the required connections to the bonding joint.
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