??? 09/28/04 13:10 Read: times |
#78289 - RE: WEOT: Good Books on PID Responding to: ???'s previous message |
Prahlad J. Purohit wrote:
------------------------------- I forgot mention this point -In case of spot welding each welding cycle consists of several steps usually 1 to 10 steps. Why ? I ask out of interest, since we have only a crude spotwelder we use to make prototypes with here. Does it depend on the metal ? We have been trying to spot weld molybdenum, with no success... Steve |