Wedge cross-rolling two cycle roll-forming method for train shaft blank

• Main Author: BAOYU,HU WANG
• Format: Patent
• Language: English
• Published: 18.04.2007
• Subjects: MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

A technology for forming the axle bank of train by using wedge dies to roll it by two-turns includes such steps as heating a circular blank to 1000-1200 deg.C, feeding it between two die sets with at least one pair of internal wedges and one pair of external wedges, rotating the die sets by one turn...