Method for additive manufacturing of TC4 titanium alloy foil

The invention provides a method for additive manufacturing of a TC4 titanium alloy foil. The method comprises the following steps: 1, taking a part and TC4 titanium alloy foil prepared by an asynchronous rolling mill; secondly, the TC4 titanium alloy foil is subjected to surface deoiling through a surface cleaning device, and then an oxide layer on the surface of the TC4 titanium alloy foil is cleaned through a mechanical cleaning method; thirdly, the TC4 titanium alloy foil is cut into foil narrow bands; fourthly, the foil narrow band is loaded into a narrow band feeding machine, and then the foil narrow band is sent out at the speed of 1-3 m/min; 5, one end of the foil narrow band is aligned with one end of the prepared part; sixthly, a laser heater rapidly heats the narrow foil band in the width direction of the narrow foil band, and the narrow foil band is combined with the surface of the part to be prepared; and seventhly, a pressing roller is adopted, the pressing roller is used for pressing the foil na