Patent ID: 9614246
Date: 2017-04-04
CPC Classifications: B23K,H01M,Y02E,Y02P,Y02T,Y10T

Claim:
1. A method for shaping tab-position end faces of a core winder, comprising steps of: oscillating foil bodies of the tab-position end faces with a 0.1-100.5 KW high-power ultrasonic wave at a high frequency above 20,000 Hz, the foil bodies of the tab-position end faces comprising foil bodies of a cathode and foil bodies of an anode, and applying a pressure to soften the foil bodies of the tab-position end faces in a scope of 0.1-6.5 mm of the tab-position end faces such that the foil bodies of the cathode are entangled together and compressed together to form a structure of a foil knot and the foil bodies of the anode are entangled together and compressed together to form a structure of a foil knot; wherein the foil bodies of the cathode and the anode are respectively compressed and decreased by 0.1-6.5 mm in a direction perpendicular to top and bottom faces of the core winder.