मध्य प्रदेश शासन

Directorate General of Training

Welder Trade

A gas welder fuses metal parts together using a welding rod and an oxygen-acetylene flame to create strong joints.

Key Responsibilities:

  1. Preparation & Inspection:
  • Examine metal parts to be welded.
  • Clean the surfaces for proper bonding.
  • Hold parts together using suitable devices.
  • Create a narrow groove (if required) to guide molten metal for a stronger joint.
  1. Equipment Selection & Testing:
    • Choose the correct welding rod, nozzle, and torch based on the material and joint type.
    • Test the welding torch for proper functioning.
  2. Safety Measures:
    • Wear dark glasses and protective gear to prevent eye and skin damage.
    • Ensure a safe working environment before igniting the torch.
  3. Welding Process:
    • Release and regulate oxygen and acetylene valves to control gas flow.
    • Ignite the torch and gradually adjust the flame.
    • Guide the flame along the joint, heating it to the melting point.
    • Melt the welding rod and evenly spread molten metal along the joint.
  4. Finishing & Quality Check:
    • Inspect the welded joint for shape, size, and strength.
    • Identify and rectify any welding defects.