Method for rapidly forming a part using combination of arc deposition and laser shock forging and device implementing same

A method for rapidly forming a part using combination of arc deposition and laser shock forging, comprising:

• 1) importing a drawn 3D model of the part into a simulation system in a computer;
• dividing a preforming part model into one or more forming units by the simulation system and determining a forming order of the forming units;
• laminating and slicing the forming units in a stack direction;
• processing data according to the laminated slices to generate a numerical control code for processing slices respectively;
• 2) sending the numerical control code of each slice from the computer to a numerical control device;
• controlling, by the numerical control device, an arc welding device to perform a melting deposition forming on a processing material layer by layer on a processing substrate of a motion platform to form a melting deposition layer;
• 3) controlling, by the computer, a movement of the motion platform to keep a fusion zone always in a horizontal state, at the same time, a pulse laser beam of a laser device to perform a synchronous shock forging on an arc deposition region at a plastic deformation temperature;
• wherein during processing, a synchronous simulation processing is performed by the simulation system of the computer, while the melting deposition layer is scanned in real time through a scanning imaging system;
• and data of temperature, thickness and shape of the melting deposition layer are transmitted to the computer;
• the imaging data and simulation data are comparatively analyzed, a working state of an arc welding gun and the laser device are adjusted and controlled by the computer according to a feedback;
• wherein step 3) specifically comprises the following steps:
• collecting and transmitting the data of the temperature of the arc deposition region by an infrared thermal imaging system to the computer;
• performing the shock forging on the melting deposition layer by the pulse laser of the laser device when the temperature of the arc deposition region is cooled to a recrystallization temperature;
• when the temperature of the arc deposition region is too high/low, outputting a control signal to the arc welding device by the computer to reduce/improve an input power of the arc welding device to achieve a closed-loop control;
• wherein the computer determines a pulse width of the pulse laser according to a thickness of the melting deposition layer, and determines a laser forging frequency and a spot value according to a width of the melting deposition layer;
• the laser device is controlled by the computer to perform the synchronous shock forging on the arc deposition region of the melting deposition layer within the plastic deformation temperature;
• a laser data is collected by the computer through a beam quality detecting device, then a control signal is output by the computer to adjust the pulse width, forging frequency and spot value of the laser.