곽원석
2017-03-21 21:47:41
AWS기준 FCAW의 WPS & PQR에 Electrical Parameters TRANSFER MODE "Globular, Spray, Short circuiting" 를 꼭 기입 해야 하는지요?
*** ASME와 무관합니다.
고수님들의 조언 부탁드립니다
AWS D1.1 Table 4.5
14) A change in type of current (ac or dc) or polarity and mode of transfer (GMAW only). FCAW는 해당이 안되는 것 같은데...
그리고 Job spec에 FCAW는 Spray transfer로 하라고 되어 있으나 아래 허용된 E71T-1C 용접봉을 사용하므로 Job spec도 충분히 만족 하는것으로 생각됩니다
AWS A5.20 ANNEX A
A7.1 EXXT-1C and EXXT-1M Classifications. Both the EXXT-1C and EXXT-1M electrodes have similar
type slags and are designed for single and multiple pass welding using DCEP. The larger diameters (usually
5/64 in [2.0 mm] and larger) are typically used for welding in the flat position and for welding fillet welds in the
horizontal position. The smaller diameters (usually 1/16 in [1.6 mm] and smaller) are typically used for
welding in all positions. These electrodes are characterized by a spray transfer,....