Surface Finished Metal Welding Service With Deep Drawing Stamping Laser Cutting

Product Specification

Metal Bending Deep Drawing Stamping Welding Laser Cutting Sheet Metal Fabrication Service

Description Of Metal Welding 

Metal welding is a manufacturing process that involves joining two or more metal parts together by applying heat, pressure, or both. The process typically melts the edges of the metal parts, allowing them to fuse together when cooled. A filler material may also be used to help form a strong bond. Welding is widely used in many industries, including construction, automotive, aerospace, and manufacturing, to create durable, high-strength connections between metal components. Metal welding is a critical joining process that creates strong, durable connections between metal parts. With various techniques available (e.g., arc welding, gas welding, laser welding), welding offers versatility and precision for different materials and applications. While it requires skill and expertise, welding remains an essential process for building everything from small mechanical parts to large structural components in industries like automotive, aerospace, and construction.

Basic Principles of Metal Welding:

1. Heat Generation:
   The primary principle behind welding is the generation of heat sufficient to melt the metal at the joint. This can be achieved using different methods, such as electric arcs, gas flames, or lasers.

2. Fusion:
   The molten metal from the base materials (workpieces) flows together and forms a bond as it cools and solidifies, creating a welded joint. If a filler material is used, it also melts and fills the joint, reinforcing the connection.

3. Cooling:
   After the molten metal cools, the metal solidifies, and the materials are joined together. Proper cooling can impact the strength and integrity of the welded joint, which is why various cooling methods (e.g., controlled cooling or quenching) may be used.

Types of Metal Welding:

1. Arc Welding:
   Arc welding is one of the most common types of welding. It uses an electric arc to generate heat and melt the metal. The electric arc is created between an electrode and the workpiece.

   • MMA (Manual Metal Arc) or Stick Welding: A consumable electrode is used, which melts during the process.

   • MIG (Metal Inert Gas): A continuous wire electrode is fed through a welding gun, with an inert gas (usually argon) protecting the weld pool.

   • TIG (Tungsten Inert Gas): Uses a non-consumable tungsten electrode to create the arc, and a filler rod may be added manually.

   • Flux-Cored Arc Welding (FCAW): Similar to MIG welding, but the wire electrode is hollow and filled with flux to protect the weld pool.

2. Gas Welding:
   Gas welding uses a flame from an oxygen-acetylene torch to melt the metal edges and join them together. It is one of the oldest forms of welding and is often used for repairs and lighter materials.

3. Laser Welding:
   Laser welding uses a focused laser beam to melt and fuse metal parts. This technique is highly precise and is used for small, intricate welds. It is often employed in aerospace, electronics, and medical device manufacturing.

4. Resistance Welding:
   This method uses heat generated by electric current flowing through the workpieces. The heat melts the materials at the joint, and they fuse together. The most common types of resistance welding include:

   • Spot Welding: Used to join two or more layers of metal at specific points.

   • Seam Welding: Similar to spot welding but involves continuous welds along a seam.

   • Projection Welding: Used for joining parts with projections or raised areas, typically used in automotive and heavy manufacturing.

5. Friction Welding:
   Friction welding involves generating heat through friction between two workpieces that are rotated relative to one another. The heat melts the interface, allowing the pieces to fuse. This process is ideal for joining dissimilar materials, such as steel to aluminum.

6. Ultrasonic Welding:
   Ultrasonic welding uses high-frequency ultrasonic vibrations to generate heat at the interface of two workpieces. The vibrations cause the surfaces to melt and bond together. This technique is commonly used for joining plastics, but it is also used for thin metals.

7. Electron Beam Welding (EBW):
   Electron beam welding uses a focused beam of high-energy electrons to melt and join metals. This process occurs in a vacuum to prevent contamination, and it is highly precise, making it suitable for aerospace, automotive, and medical applications.

Advantages Of Metal Welding

• Strong, Permanent Joints:
  Welding creates permanent, high-strength joints, which can withstand significant loads and stresses. The strength of the welded joint is often comparable to or even greater than the strength of the base materials.

• Versatility:
  Welding can be used on a wide range of metals, including steel, stainless steel, aluminum, copper, and many alloys. It is versatile enough for thin to thick materials and works in various positions (flat, vertical, overhead).

• Cost-Effectiveness for Large Assemblies:
  Welding is often cost-effective for joining large components or structures, especially in heavy industries like construction, shipbuilding, and automotive manufacturing.

• Precision and Automation:
  Welding processes like TIG and laser welding offer high precision, and with advancements in technology, robotic welding systems can automate welding processes for consistency and productivity.

• Minimal Material Waste:
  Welding typically generates very little waste, as the materials being welded are fused together without the need for additional fasteners or adhesives.

Support and Services

Welding is a crucial process in sheet metal fabrication, essential for everything from small components to large metal parts. Selection Hardware also provides customized metal welding services. Based on customer drawings or samples, we combine welding, stamping, laser cutting, bending, and other sheet metal fabrication techniques to offer tailored metal parts, meeting our customers' metal processing needs

Applications Of Metal Welding

Metal welding technology offer help for various industries:

• Automotive: Welding is used to manufacture vehicle frames, body parts, exhaust systems, and structural components.

• Aerospace: Welding is used for structural components, engine parts, and assemblies that require high strength and precision.

• Construction: Metal welding is essential for joining steel beams, rebar, and structural supports in building construction.

• Shipbuilding: Welding is used extensively in constructing ships, submarines, and offshore platforms.

• Energy: In power plants, oil and gas pipelines, and renewable energy systems (e.g., wind turbines), welding ensures strong, durable connections for high-pressure systems.

• Manufacturing: Welding is commonly used to assemble metal parts in industrial machinery, tools, and equipment.

FAQ

Q: Are you trade company or manufacturer?
A: We are professional manufacturer with over 17 years experience, welcome to visit our factories.
Q:Do you offer OEM or ODM business?
A: Yes. OEM is our main business.
Q: What certifications do you have?
A: We have the following certifications:  IS09001:2015, CE-Rohs.
Q: Can you help assembling the parts after it is manufactured?
A: Yes. Our factory has multiple assembling lines. 
Q: What is the price of our metal welding service?
A: The price is depend on your projects. Typically, our prices are competitive.
Q: What are the packaging details for the products?
A: The package can be customized according to your requirements.
Q: What is the delivery time for the welding service?
A:  For welding metal parts, 7~15 working days for sample, 30 working days for mass production.

Q: Will my drawing or other documents be safe after you get it?
A: Yes. We can sign confidential aggrement for all your projects.