JCL Precision Part Co.,Ltd.

Sheet Metal Welding

Get A Quote

What is Sheet Metal Welding

Sheet metal welding is a sheet metal fabrication process where two metal sheets of same or different materials are joined together. This joining is done by heating, metaling and then fusing the metal sheets. This joining is also done with or without the help of a filler material.


What are Different Types of Sheet Metal Welding

Arc Welding

Arc welding or electric arc welding is one of the two basic metal welding processes. The process involves heating, melting, and joining metal sheets using an electric arc. The arc is developed using an electrode and electric current that flows from electrode to the metal sheets and back to the welding machine.

The electrode used in the arc welding may or may not be a consumable electrode. Mean it may or may not melt during the welding process. Consumable electrodes are usually used when there is a gap between plates to be filled.

Arc Welding

MIG Welding

MIG welding or metal inert gas welding is a type of arc welding and is one of the most used sheet metal welding processes. This process provides very high quality and high strength weld joints and thus is used in high load applications.

In MIG welding metal sheets are heated, melted and joined together using a metal consumable electrode in the presence of an inert gas. A consumable electrode is fed through a gun and an inert gas usually argon shields the welding spot.

TIG Welding

TIG welding or tungsten inert gas welding is a type of arc welding and is also one of the most used sheet metal welding processes. Like MIG welding, TIG welding also provides very high quality weld joints. 

In TIG welding, metal sheets are heated, melted, and joined together using non-consumable tungsten electrodes. A separate filler rod is used using this sheet metal welding process. The welding spot is shielded using an inert gas. 

TIG Welding

Spot Welding

Spot welding is another type of arc welding that produces a unique type of weld joint. It produces a weld joint that joins the metal sheets at only one spot at a time. That is the reason this process is called spot welding.

It uses a set of copper electrodes and electric arc to heat, melt, and weld the overlapping metal sheets. This process is used to weld a thin metal sheet for low load applications.


Seam Welding

Seam welding is another type of arc welding that is very similar to spot welding. Seam welding uses two copper wheels as electrodes. It heats, melts, and joins the overlapping metal sheets using electric current.

Seam welding, unlike spot welding, is used to produce a continuous seam of welding. That is the reason it's called seam welding. It is also used to weld thin sheets of metal that can be used for low load applications. 

Laser Welding

Laser welding is a type of sheet metal welding where two thin sheets of metal are welded together using a laser beam. Laser beam in laser welding, heat, metal and join the metal sheets. 

This process can be done on a very thin sheet which other processes might not be able to do. This process also provides a very high precision welding thus producing very high quality products.


Laser Welding

Sheet Metal Welding of Different Materials

Mild Steel Welding

Known for its strength and ease of welding. Mild steel is one of the world's most used materials when it comes to welding. Mild steel welding can be done using any welding technique like TIG welding, MIG welding, and Laser Welding.

Aluminum Welding

Known for its weightlessness, ductility, corrosion resistance and good strength. Aluminum is one of the most used metals in lightweight applications. Due to its low melting temperature, it is a bit tricky to do aluminum welding. At JCL a highly skilled team of welders make sure that their clients get the best aluminum welding experience.

Stainless Steel Welding

Stainless steel is one of the steel alloys with some very special qualities. This includes corrosion resistance, high strength & ductility and safety for the food industry. That is why stainless steel is widely used in the food packaging industry. Canes and containers made of stainless steel can be welding using seam welding.

Some other commonly welded materials at JCL

Copper                          Bronze                     Titanium

Nickel Alloys                 Cast Iron                   Brass


How Quality Control is Done in Sheet Metal Welding

At JCL quality control at the sheet metal welding shop is done using a systematic process to ensure that welded components meet specified standards and requirements.

Welder Qualification

JCL makes sure that they have qualified welders through a certification process. Certification assesses welders ability to produce welds that meet specified criteria.

Quality Welding Equipment

JCL makes sure their workers have high quality welding equipment. This ensures accurate control of welding parameters like voltage, current, and travel speed.

Documented Welding Procedures

JCL has a complete set of well documented welding procedures and specifications. The documentation outlines the required materials, welding processes, parameters, and quality standards.

Material Testing and Inspection

JCL employs several inspection methods, especially non-destructive testing methods to ensure quality of weld joints. This testing includes ultrasonic testing, radiographic testing, or magnetic particle testing. These tests can detect internal defects without damaging the welded structure.



Applications of Sheet Metal Welding

Automotive Industry

Car Body Fabrication

Exhaust Systems

Chassis Components

Suspension Parts

Aerospace Industry

Aircraft Components

Fuselage Sections

Wing Structures

Landing Gear Components


Structural Steel Fabrication

Metal Building Construction

Roofing Systems

Prefabricated Structures


Ship Components

Hull Sections

Deck Structures

Superstructure Elements

Energy Sector

Power Plant Structures

Renewable Energy Components

Heat Exchangers

Solar Panel Frames

Appliance Manufacturing

Home Appliances

Oven Cabinets

Refrigerator Components

Washing Machine Casings

Electronics Enclosures

Electrical Cabinets

Control Panels

Server Racks

Electronics Housings

Medical Equipment

Medical Cabinets and Carts

Imaging Equipment Housings

Surgical Equipment Frames

Diagnostic Device Casings

Furniture Manufacturing

Metal Furniture

Chairs and Tables

Cabinets and Shelving

Metal Bed Frames

Defense and Military 

Military Vehicle Manufacturing

Armored Personnel Carriers

Tank Components

Consumer Goods

Metal Containers

Food Packaging

Beverage Cans

Metal Product Casings

Electronics Manufacturing:

Electronic Enclosures

Computer Chassis

Server Rack Components

Consumer Electronics Housings

Electronic Control Panels


Why JCL is best at Sheet Metal Welding

JCL offers you the best value of your time and money. JCL has a dedicated workshop just for welding and all workers are highly qualified and trained to deliver excellence. 


Contact Us

We are excited to collaborate with you! 

If you have any questions about our products or require custom machining services, please don’t hesitate to reach out to us. We are here to assist you and provide the solutions you need.

Building A, No. 2 Shiquanling Road, Zhenjiang Sub-district, HZZK Hi-tech Industrial Development Zone, Huizhou