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Sheet Metal Welding

Sheet Metal Welding

Sheet metal welding fabrication is to weld multiple parts together to achieve the purpose of fabrication or to weld the edge seam of a single part to increase its strength. The fabrication methods generally include the following: CO2 gas shielded welding, argon arc welding, spot welding, robot welding, etc. The selection of welding methods in these sheet metal fabrication plants is based on actual requirements and materials. Generally speaking, the rental welding of robot electric welding machine is mainly used when the material is large and the welding seam is long.

Such as cabinet welding, robot welding can be used, which can save a lot of tasks and improve work efficiency and welding quality. CO2 gas shielded welding is used for iron plate welding; argon arc welding is used for aluminum plate welding.For a sheet metal fabrication factory, the fabrication process is indispensable for the welding process, because only through welding can multiple parts be combined together.

Sheet Metal Welding Services For Precision Sheet Metal Parts – China Industries Welding Parts Factory, Supplier – Pintejin provides best sheet metal welding services for the fabrication of both small and large series of sheet metal parts of any complexity. We use various types of industries welding machines including upright, bench, radial, which allows us to welding of both simple and complex up to 24 ft. length and 92 in. dia.. The sheet metal welding parts be made of metals and alloys (aluminium, steel, copper and others) and polymers. Our welding services provide us with the capability to complete your job in-house to our exacting quality standards. Our advanced sheet metal welding equipment is integrated with our sheet metal machine and allows us to efficiently and precisely welding your part, whether you require simple or complex welding patterns.

Sheet Metal Welding

Currently, our non-standard sheet metal welding parts are exported to America, Canada, Australia, United Kingdom, Germany, France, Sout Africa, and many other countries all over the world. We are ISO9001-2015 registered and also certified by SGS.

Our custom industries welding service provides durable and affordable parts that meet your specifications for automotive, medical, aerospace, electronics, food, construction, security, marine, and more industries. Fast to send your inquiry or submit your drawings to get a free quote in the shortest time.Contact us or Email [email protected] to see how our people, equipment and tooling can bring the best quality for the best price for your custom sheet metal welding project.

The Advantages And Disadvantages Of Sheet Metal Welding

Sheet metal welding fabrication is to weld multiple sheet metal parts together to achieve the purpose of fabrication or to weld the side seam of a single part to increase its strength. The advantages and disadvantages of sheet metal welding are as follows:

The Benefits And Advantages Of Welding

The Benefits And Advantages Of Welding

  • Save metal materials and reduce structural weight
  • Simplify fabrication & installation procedures & improve efficiency
  • High structural strength and good joint sealing; provide greater flexibility for structural design
  • It is easy to realize mechanization and automation
  • Reduce production costs and save production costs

The Disadvantages Of Sheet Metal Welding

  • The simple welding structure leads to large residual deformation and welding internal stress. Because most of the welding methods use partial heating, the welded parts after welding will inevitably have stress and deformation in the structure, which will affect the structural bearing capacity, processing accuracy and dimensional stability. At the same time, it will also lead to stress concentration at the junction of the weld and the weldment, which will affect the brittle fracture of the structure;
  • There are a certain number of shortcomings in welded joints: such as cracks, pores, slag inclusions, incomplete penetration, and lack of fusion. Shortcomings can reduce strength, cause stress concentration, and damage weld fineness;
  • The welded joint has a large functional non-uniformity, because the composition and metallographic structure of the weld are different from the base metal, and the internal stress of each part of the joint is different, so that the performance of the joint in different places is different;
  • High temperature, strong light and some toxic gases occur during welding, which have certain harm to the human body, so labor protection needs to be strengthened.

The Fabrication Steps Of Sheet Metal Welding – How Sheet Metal Welding Works

The selection of sheet metal welding method is determined according to the actual requirements and materials. Generally speaking, argon arc welding is used for aluminum plate and stainless steel welding, and galvanized plate is used for two-protection welding. Bolts and nuts use resistance welding or pressure welding.

After the blanking is completed, the sheet metal enters the next process, and different workpieces enter the corresponding process according to the fabrication requirements. There are bending, riveting, flanging and tapping, spot welding, convex hull, and level difference. Sometimes the nut or stud should be pressed after one or two bends. Among them, the convex hull and level difference of the mold should be considered. Fabrication first, so as to avoid interference in other processes after fabrication first, and the required fabrication cannot be completed. When there are hooks on the upper cover or lower shell, if they cannot be welded after bending, they must be processed before bending.
When bending, it is necessary to first determine the tool and kerf used for bending according to the size and material thickness on the drawing. Avoiding the deformation caused by the collision between the product and the tool is the key to the selection of the upper die (in the same product, it may be Different types of upper molds are used), and the selection of lower molds is determined according to the thickness of the sheet. The second is to determine the order of bending. The general rule of bending is first inside and then outside, small then large, special first and then ordinary. For workpieces with edges to be pressed, first bend the workpiece to 30°-40°, and then use a leveling die to press the workpiece to death.
When pressing riveting, it is necessary to consider the height of the stud and select the same and different molds, and then adjust the pressure of the press to ensure that the stud and the surface of the workpiece are flush, and avoid the stud not being pressed firmly or being pressed out beyond the surface of the workpiece. cause the workpiece to be scrapped.
Sheet metal welding includes argon arc welding, spot welding, carbon dioxide shielded welding, manual arc welding, etc. For spot welding, the welding position of the workpiece should be considered first, and positioning tooling should be considered during mass production to ensure the accurate spot welding position.

With Pintejin automated and highly streamlined sheet metal fabrication service, you can expect a sheet metal fabrication quote within 12 hours and lead times as quickly as three days.Our rapid prototyping offering also includes a solid and reliable manufacturing capability (led by our expert team with 15+ years of experience) and technical and quality assurance, including SGS and RoHS material certifications, in-process quality reports, and First Article Inspection.



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