本发明公开了一种局部复合的薄壁金属制品及其复合装置与方法，属于金属制品制造领域。装置包括内模、外模、内模固定装置、外模固定装置、上工作台面、下工作台面、加热器和施力机构。 对金属内件和金属外件的待复合区域进行软化退火处理和待复合表面处理， 组合金属内件和金属外件构成组合待复合区域，对加热或不加热的组合待复合区域进行压制复合， 获得局部复合的薄壁金属制品。 本发明装置结构简单，制造成本低， 便于自动化生产； 采用压制复合法代替传统焊接法，工艺流程短、 成品率高， 无需焊料或中间层，节约成本、绿色环保； 局部复合的薄壁金属制品质量好、性能优， 复合界面结合强度 高 、 密 封 性 好 。 特 别 适 用 于 金 属 保 温 杯 杯 口 的 高 效 低 成 本 复 合 。

The present invention discloses a locally composite thin-walled metal product and a composite device and method thereof, belonging to the field of metal product manufacturing. The device includes an inner mold, an outer mold, an inner mold fixing device, an outer mold fixing device, an upper working table, a lower working table, a heater and a force application mechanism. A soft annealing treatment and a surface treatment of a metal inner part and a metal outer part to be composite are carried out, a combination of the metal inner part and the metal outer part constitutes a combination of the composite area to be composite, and the combination of the composite area to be composite is pressed and compounded with or without heating, so as to obtain a locally composite thin-walled metal product. The device of the present invention is simple in structure, low in manufacturing cost, and convenient for automatic production; the compression composite method instead of the traditional welding method, the process is short, the product rate is high, and there is no need for solder or intermediate layer, which is cost-saving and environmentally friendly; the local composite of the thin-walled metal products is of good quality and performance, and the composite interface has high bonding strength and good sealing properties. It is especially suitable for high-effective and low-cost compounding of metal thermos cup spout.