Friction-stir welding tool for aluminum alloy battery structural member of new energy automobile

• Main Authors: LIU ZHE, HE FENGHUA, ZHONG RUJIAN, ZHAO YUNQIANG
• Format: Patent
• Language: Chinese; English
• Published: 25.11.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The utility model discloses a friction stir welding tool for a new energy automobile aluminum alloy battery structural member, which comprises a stirring needle, a connecting shaft and a shaft shoulder, the shaft shoulder is fixed at the top end of the stirring needle, a heat dissipation structure comprises a connecting piece, a fixing bolt, a heat preservation shell, heat dissipation fins and heat conduction copper plates, and the heat conduction copper plates are fixed on the outer side wall of the shaft shoulder. And heat dissipation fins are fixed on the outer sides of the heat conduction copper plates. The heat conduction copper plate absorbs the shaft shoulder and guides the shaft shoulder into the air through the heat dissipation fins, heat dissipation is accelerated, welding seams are prevented from being overheated, when welding is affected due to insufficient heat of the welding seams, the heat preservation shell is arranged on the outer sides of the heat dissipation fins in a sleeving mode to block