Calorimetry of the arc welding process
Minimizing the total heat input in arc welding is not usually a critical consideration when the size of the fusion zone and the weldment are very large. At SNLA, however, most welding can usually be described as microwelding. The depth of penetration is typically only 0.8 mm and hermeticity rather than mechanical strength is the primary joining requirement. For these type welds, minimizing heat input becomes a major process requirement since distortion of small components and damage to heat sensitive parts may result from large increases in the bulk temperature. In conclusion, we have found calorimetry to be a useful technique to determine the effect of arc welding process variables on heat input and melting efficiency and also to better select the required welding process for our weld geometries.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5887759
- Report Number(s):
- SAND-86-0817C; CONF-860283-1; ON: DE86009280
- Country of Publication:
- United States
- Language:
- English
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