This is a 1/4" fillet weld with unequal leg length.

A 1/4" fillet weld with unequal leg length refers to a type of welding joint where two pieces of metal are joined together by a triangular-shaped weld.

The term "1/4 inch" refers to the size or thickness of the weld leg. This means that the weld legs, which are the two sides of the triangle, have a dimension of 1/4 inch each. The leg length is typically measured perpendicular to the base of the triangle.

When we say it is an "unequal leg length" fillet weld, it means that the two legs of the fillet weld are of different lengths. One leg may be longer or shorter than the other, which can be specified based on the requirements of the welding design.

To create a 1/4" fillet weld with unequal leg length, one would need the following:

1. Welding equipment: This includes a welding machine and the appropriate accessories like a welding power source, welding electrode or filler material, and welding helmet.

2. Preparation: Clean the surfaces of the metal parts to be joined using a wire brush or other suitable methods. Remove any dirt, rust, or contaminants that may hinder the welding process.

3. Fit-up: Position the metal pieces to be welded in the desired configuration, ensuring proper alignment and gap spacing according to the welding specifications.

4. Welding process: Use the appropriate welding technique (e.g., MIG, TIG, or Stick welding) to deposit the weld metal along the joint. The weld metal should form a triangular shape between the two metal pieces, with the leg lengths specified as 1/4 inch each, but may vary in length.

5. Welding parameters: Depending on the welding method chosen, adjust the welding parameters such as current, voltage, travel speed, and electrode size to achieve the desired weld quality and penetration.

6. Quality inspection: After welding, visually inspect the fillet weld to ensure that it meets the required specifications, including the length and thickness of the legs. Additionally, other quality control measures may include non-destructive testing, such as X-ray or ultrasonic inspection, to ensure the integrity of the weld.

It's important to note that welding should only be performed by trained and qualified individuals who follow proper safety practices and adhere to the recommended welding procedures and standards.