Spot Welder

From RISDpedia

General Overview
Spot welders create resistance welds. They are typically used to weld various sheet metals. Though wire can also be welded to itself and to sheet metal. The welder has two J-shaped copper alloy electrodes that concentrate welding current and force between the materials to be welded. The result is a small "spot" that is quickly heated to the melting point, this forms a nugget of welded metal after the current is removed. T
Tips, Tricks & How-Tos
The amount of heat released in the spot is determined by the amplitude and duration of the current. The current and duration are chosen to match the material, the sheet thickness and type of electrodes. Applying the current for too long can result in molten metal being expelled as weld splash, or can even burn a hole right through the materials being welded. The trigger is usually pushed in a sideways direction.
Not Recommended

Safety Information
Note: All safety information contained here within is pure recommendation, and its sole purpose is to help students work safer. This should in no way be considered a professional statement or a replacement for reading product information. Please read all instructions included with products before use. Wear Safety glasses and look away when pressing the triger.
Availability
The ID metal shop has two spot welders.
External Links

NOTE: All information contained within this article is pure opinion. Although this article is intended to help students, it may contain faulty or misleading information. This article is not to be considered professional opinion or advice, and is in no way a replacement for reading all safety/instructional documentation. Always remember to protect yourself when handling/using hazardous materials, as well as test new techniques before using them on projects/work intended to be handed in or used. RISDpedia and its contributers take NO responsibility for the information contained within. RISDpedia is not an official site of the Rhode Island School of Design.