Arc Welding Processes I

Welding Technology · Level 5  ·  3 Chapters

▣ What this unit covers

In this unit, you will be able to confidently set up and operate arc welding equipment, interpret technical drawings, and perform precise welds on metal materials with safety and skill. You will master essential health and safety practices, maintain and repair your tools, and keep your workspace organized, preparing you to tackle real-world welding tasks with professionalism and care. By the end, you'll have the hands-on expertise to contribute effectively in any welding environment.

■ Where this takes you

Working with arc welding opens doors to many practical jobs across Kenya. Whether you join a team or start your own service, the skills you master here are in demand from construction sites to small-scale workshops.

  • Construction sites in Nairobi’s CBD and industrial estates - you follow strict safety rules, read structural drawings, set up welding machines, and join steel members up to 6 mm thick, earning daily wages or a salaried position as a site welder.
  • Metal-fabrication workshops in Kiambu and Nakuru - you interpret shop drawings, assemble the required tools, prepare metal plates, select the correct welding parameters, and produce frames for gates, furniture or agricultural sheds, earning hourly pay or profit from selling finished products.
  • Automotive body-repair garages in Mombasa’s industrial area - you apply health-and-safety procedures, read chassis schematics, weld sheet-metal panels in flat and horizontal positions, and keep the workshop tidy, earning per-job fees or a fixed salary as a technician.
  • Agricultural-machinery repair shops in Eldoret and Kitale - you study equipment manuals, prepare welds on tractor frames and implements, perform preventive maintenance on welding equipment, and charge repair fees or run a mobile welding service for farms.
  • Water-supply and irrigation pipe fabrication units in Turkana and Kitui - you interpret pipe-layout drawings, set the right arc parameters for steel pipe joints, and maintain a clean work area, earning contracts from NGOs, county projects or private irrigation schemes.
  • Mining-support-structure fabrication firms in Kajiado and Kitale - you obey rigorous safety protocols, read engineering drawings for support beams, execute precise flat welds, and service welding machines, earning higher wages due to the specialised nature of the work.
  • Small-scale metal-art and furniture studios in Kisumu’s lakeside markets - you apply safety measures, follow design sketches, assemble tools, weld decorative pieces, and keep the studio organized, earning income from sales and custom orders.
  • Road-bridge and culvert construction teams on county road projects - you interpret structural drawings, set up arc-welding rigs, weld reinforcement steel, and carry out housekeeping, receiving daily wages or contract payments for each project phase.
  • Self-employed mobile welding service covering peri-urban areas like Ruiru, Thika and Nakuru - you handle every step from safety checks to equipment repair, travel to client sites, and charge per hour or per weld, building a reputation that brings repeat business and steady earnings.
  • Preventive-maintenance workshops in large manufacturing plants in Nairobi’s industrial zones - you follow manufacturer manuals to service welding machines, troubleshoot faults, and repair tools, earning a stable salary as a maintenance technician.

Mastering these arc-welding skills means you can walk into any of these workplaces confident you’ll deliver quality work, stay safe, and keep the tools running - setting the foundation for a rewarding career or a thriving own business. Keep practicing, and the opportunities will follow!

Chapters

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Beyond the syllabus