Spot Welder

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Spot.jpg
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Make: Miller

Model: LMSW-52

Serial Number: MJ328801N

Ace: Levi Gibson (lgibson19@georgefox.edu).

Location: Welding Shop


Safety First

Safety First HD2.png
  • Wear gloves and welding helmet.
  • Don't have bare skin exposed.
  • Don't weld in wet gear or standing water.
  • Welded material will be hot.



Description

Resistance spot welding is a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current. The Miller LMSW-52 Air-Cooled Spot Welder is a lightweight unit that is portable, easy to operate and excellent for welding mild, galvanized or stainless sheet materials.

  • LMSW-52 spot welder manual [1]


Here is an example of spot welding and some good basic information.

Documentation

Spot Welder User Manual

Terminology

  • Tongs-

Training

Operation

Here are some general setup rules of thumb:

  • The maximum weld capacity is 2 sheets of 16 gauge material.

Demonstration

For the demonstration you will need to perform a spot weld using two pieces of scrap material.

General Procedure

  1. Ensure the material being welded should be clear of any oil or dust
  2. Turn on the spot welder
  3. Place the material being welded between the clamps.
  4. Clamp down on the two pieces of material for approximately 2 seconds. The time required to weld may vary slightly depending on the material and thickness.
  5. Grab workpiece with a set of pliers, and open the clamp.


Certification

Canvas Quiz

Troubleshooting

Maintenance

General maintenance

The welding tips should be inspected and cleaned as needed.

Specific Maintenance Tasks

Maintenance Procedure Frequency Done By
xxx xxx Student/Tech
xxxx xxxx Student/Tech
xxxx xxxx Student/Tech