Precision Welding Services for Pipe Fitting Systems in Industrial Use

Welding is a manufacturing process and technology that uses heat, high temperature, or high pressure to join metal or other thermoplastic materials such as plastics. At LPF, a leading industrial pipe fittings manufacturer, we typically utilize advanced welding techniques such as Argon Tungsten Arc Welding (GTAW), Plasma Welding (PAW), Manual Welding (SMAW), and Submerged Arc Welding (SAW) to ensure precision and strength in every joint.

Different welding processes for industrial pipe systems are adopted depending on the material requirements. The heat input is controlled by managing current, voltage, and speed. Controlling the temperature during the process is also critical—preheating, inter-layer temperature, and post-weld heat treatment must all be meticulously regulated.

We maintain a complete set of welding qualification processes (WPS & PQR) and strictly manage the storage, drying, and distribution of welding consumables to ensure optimum welding quality for high-performance pipe fitting systems.

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All welded fittings shall be double welded. Inside weld projection shall not exceed 1.6 mm. Welds shall be ground smooth at least 25 mm from the ends.

All welded fittings shall be normalized & all weld joints including parent material weld shall be 100% radiographed by X-ray on all welds made by fittings manufacturers & also on the parent materials.

MACHINING

Machining pipe fittings involves the process of shaping and finishing the fittings through various cutting operations. The specific machining methods used can vary depending on the material, dimensions, and design of the fittings. Here are some common machining operations for pipe fittings:

• Turning:
  • Turning is a machining operation that involves rotating the fitting against a cutting tool to remove material and create the desired shape.
  • The fitting is clamped in a lathe or a turning machine, and the cutting tool is fed into the rotating fitting to remove material and create the required features, such as outer diameter, inner diameter, and grooves.
• Drilling:
  • Drilling is a machining operation used to create holes in the fittings.
  • The fitting is securely held, and a rotating drill bit is fed into the material to remove material and create the hole.
• Milling:
  • Milling is a versatile machining operation that involves using rotating multiple cutting teeth to remove material from the fitting.
  • The fitting is held in a milling machine, and the cutting tool, typically a rotating cutter, moves across the fitting to remove material and create features such as slots, pockets, or complex shapes.
• Threading:
  • Threading is a machining operation used to create screw threads on the fittings.
  • The fitting is typically clamped in a lathe or a threading machine, and a cutting tool is used to remove material and form the threads, following the required thread specifications.

• Grinding:
  • Grinding is a machining operation used to achieve precise dimensions, smooth surfaces, or improve surface finishes of the fittings.
  • A grinding wheel or abrasive belt is used to remove material and refine the shape or surface of the fitting.
• Deburring:
  • Deburring is a post-machining operation that involves removing sharp edges, burrs, or rough spots from the machined fittings.
  • Various methods such as filing, sanding, or using specialized deburring tools are employed to achieve smooth and safe edges.