References
- Boron , S . 1996/97 . ‘Diploma Thesis’ , Publ Instytut Spawalnictwa .
- Malczewski , K. 1992 . ‘A stand for the investigation of the process of resistance welding’ . Biuletyn Instytutu Spawalnictwa , (2)
- Bothfeld , R . 1997 . ‘Resistance welding with a medium frequency invertor power source — Fundamentals and practical advantages’ . Biuletyn Instytutu Spawalnictwa , (2)
- Papkala , H . ‘W-90/IS-52 recommendations. A method of assessing the feasibility of spot and projection lap welding for metal plates’
- Polish Standard PN-75/M-69122-Welding. Contact point electrodes with external conical grips for spot-welders
- 1994 . ISO/DIS-14273/94 — Specimen dimensions and procedure for shear testing resistance spot and embossed projection welds —Project
- 1994 . ISO/DIS-14272/94 — Specimen dimensions and procedure for cross-tension testing resistance spot and embossed projection welds — Project