Answered

Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Our Q&A platform offers a seamless experience for finding reliable answers from experts in various disciplines. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

When setting up to make a GTA weld on low carbon steel, the tungsten should be

A. pointed, DCEN
B. set 1 in. (25 mm) out of the nozzle, DCEN
C. even with the nozzle, DCEP
D. rounded, AC

and the welding machine set

Sagot :

GinnyAnswer
When setting up to make a Gas Tungsten Arc (GTA) weld on low carbon steel, the following steps should be considered:

1. Preparation of the Tungsten Electrode: Low carbon steel requires specific electrode preparation to ensure proper weld quality.
- Shape: For low carbon steel welding, it is important to use a tungsten electrode that is pointed. A pointed electrode provides a concentrated and stable arc that is effective for the required precision in low carbon steel welding.

2. Polarity: The polarity setting on the welding machine is also crucial:
- DCEN (Direct Current Electrode Negative): For low carbon steel, DCEN is typically used. This means the electrode is connected to the negative terminal, allowing deeper penetration with a stable arc and minimal electrode overheating.

Therefore, the correct setup involves using a pointed tungsten electrode and setting the welding machine to DCEN.

Given these considerations, the correct answer to the question is:
a. pointed, DCEN
Thank you for choosing our service. We're dedicated to providing the best answers for all your questions. Visit us again. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.