welding

Welding Services

RJC is equipped with today’s latest equipment and technology to meet customers’ specifications. A proper welding quality system is the basis for providing quality welding products or services. Certified welders and inspectors ensure more consistent and traceable daily manufacturing operations. Our service can also write new welding programs according to customer needs to meet specific customer requirements.

At RJC, we insist on:

A complete library of welding codes, standards, codes and guides and other statutory and regulatory codes.
Top welding equipment.
Conforms to the specification of the welding procedure specification.
Program eligibility records to support our WPS.
Welder qualification records that certify our welders to specification.
Welding procedures for every requirement
AWS D1.1, Structural Code, Steel
AWS D1.2, Structural Specification, Aluminum
AWS D1.3, Structural Specification, Steel Plate (Light Duty)
AWS D1.4, Structural Specification, Reinforcement
AWS D1.6, Structural Specification, Stainless Steel
AWS D9.1, Structural Specification, Sheet Metal
AWS D17.1, Fusion Welding for Aerospace Applications
& We can assist with welding compliance to other specifications based on your product needs

Benefits Of CNC Machining For Medical Equipment And Products
Benefits Of CNC Machining For Medical Equipment And Products
Benefits Of CNC Machining For Medical Equipment And Products
Benefits Of CNC Machining For Medical Equipment And Products

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RJC’s welding technology

Shielded Metal Arc Welding (SMAW)
Shielded Metal Arc Welding (SMAW) is known as stick welding. Electric current is used to strike an arc between the base material and consumable electrode rod, which is made of steel and is covered with a flux that protects the weld area from oxidation and contamination by producing CO 2 gas during the welding process. The process is generally limited to welding ferrous materials.

Gas Metal Arc Welding (GMAW)

Also known as metal inert gas or MIG welding, it is a semi-automatic or automatic process that uses a continuous wire feed as an electrode and an inert or semi-inert gas mixture to protect the weld from contamination. Since the electrode is continuous, welding speeds are more significant for GMAW than SMAW. The equipment required to perform the GMAW process is more complex and expensive than that required for SMAW and requires a more complex setup procedure. GMAW is well suited to production welding. The process can be applied to a wide variety of metals, both ferrous and non-ferrous.

Flux-Cored Arc Welding (FCAW)

Related to GMAW, it uses similar equipment but uses wire consisting of a steel electrode surrounding a powder fill material. This cored wire is more expensive than the standard solid wire and can generate slag, but it permits even higher welding speed and greater metal penetration.

Spot Welding

A resistance welding method is used to join overlapping metal sheets 3 mm thick. Two electrodes are used simultaneously to clamp the metal sheets together and pass current through the sheets. The method’s advantages include efficient energy use, limited workpiece deformation, and no required filler materials. Weld strength is significantly lower than other welding methods, making the process suitable for specific applications on ferrous metals.

Gas Tungsten Arc Welding (GTAW)

Tungsten inert gas (TIG) welding is a manual welding process that uses a tungsten electrode, an inert or semi-inert gas mixture, and a separate filler material. This method is beneficial for welding thin materials; a stable arc and high-quality welds characterize this method. Still, it requires significant operator skill and can only be accomplished at relatively low speeds. GTAW can be used on nearly all weldable metals, though it is most often applied to stainless steel and light metals.

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