Mechanical Engineering - Workshop Technology - Discussion

The correct answer is: 60°-70°.

In back-hand welding, also known as "backhand" or "trail" welding, the welding torch is held at an angle of approximately 60°-70° relative to the workpiece. This technique is used for welding in tight spaces or for producing a specific type of weld bead.

Here's why the other options are incorrect:

- 30°-40°: This angle is too shallow for back-hand welding.
- 40°-50°: This angle is also too shallow and is more suitable for flat-position welding.
- 50°-60°: This angle is getting closer, but still not ideal for back-hand welding.

Backhand welding is commonly used for:

- Welding in tight spaces or corners
- Producing a flat, wide weld bead
- Welding thin materials
- Creating a specific weld profile

So, the exact angle may vary depending on the specific application, material, and welder's preference. However, 60°-70° is the typical range for back-hand welding.

Leftward or forward welding:

The angle of a rod with workpiece - 30-40°.
Angel of the torch with workpiece- 60-70°.

Rightward or backhand or backward welding:

The angle of the rod with workpiece- 30-40°.
The angle of the torch with workpiece- 40-50°.

Yes, you are correct, agree @Srk.

Fore-hand 30 - 40.

Back-hand 40 - 50.

Fore-hand 30 - 40.

Back-hand 40 - 50.

It should be 40 to 45.

The flame is focus towards to the non welded portion is called For Hand (Left Hand) and Focus towards to the welded portion is called Back hand (Right hand) welding Technic.

What is the direction of forehand welding?

Forehand: 60-70.

Backhand: 40-50.

Leftward or fore hand welding: RIGHT TO LEFT.
ANGLE ROD WITH WORK: 30-40.
ANGLE TORCH WITH WORK: 60-70.