Electrical Upsetting Machine

By employing Metal Gathering, many of the well known technical limitations and disadvantages of Mechanical Upsetting can be overcome, Simultaneous heating and forming in one machine, Almost unlimited gather in one operation. The mechanical upsetting limitation of about three times the diameter no longer applies. The modern engine valve has an upset length of up to 20 times diameter and lengths up to 40 times diameter are commonly electro-upset, No longitudinal flash is formed (of the kind which is unavoidable in Mechanical Upsetter), No waste of Heating Energy or Material. Outside of the upset volume can be precisely controlled to allow subsequent 'Flash-Less' forging in closed dies, Always ready for Instant Use. No warm-up period. Energy efficient, about 0.35 to 0.40 kwh kg. Minimal scaling because of simultaneous heating and gathering. Improved die life in subsequent forging operations. Noise Free and Environment Friendly as the machine does not emit heat, fume, exhaust gases or other pollutants. Free upsets can be finish forged without re-heating thus saving time and energy. Consistent heating temperature through the use of thyristor control.Optimal grain flow and fault free surface. The unheated bar length remains unchanged.