A high-precision electric arc additive manufacturing process for titanium alloy

Abstract

The invention discloses a titanium alloy high-precision electric arc additive manufacturing process, which relates to the field of titanium alloy electric arc additive manufacturing. Layered calculation, section filling and post-processing to generate manufacturing code; Step 3: Loading titanium alloy wire, grinding titanium alloy substrate; Step 4: Installing the substrate, adjusting the distance between the tungsten electrode, titanium alloy wire and titanium alloy substrate Distance; Step 5: Set the printing parameters of the welding machine according to the process parameters, including setting the hot wire current, heat input, frequency, base value current, peak time, scanning speed, layer height and wire feeder for the welding machine Wire feeding speed; Step 6: Start the machine to start metal fusion deposition, and real-time monitoring to adjust at any time. The titanium alloy high-precision arc additive manufacturing process provided by the invention achieves the purpose of high-precision titanium alloy arc additive.

Description

technical field [0001] The invention relates to the technical field of titanium alloy arc additive manufacturing, in particular to a titanium alloy high-precision arc additive manufacturing process. Background technique [0002] Additive manufacturing technology can be divided into two categories: metal additive manufacturing and non-metallic additive manufacturing. For metal additive manufacturing, it can be classified from the type of original material and energy source. According to the different types of raw materials, it can be divided into powder-spreading additive manufacturing, powder-feeding additive manufacturing and wire-feeding additive manufacturing. According to the energy source, it can be divided into three types: laser, electron beam and electric arc. Arc Additive Manufacturing (WAAM) uses layer-by-layer surfacing to manufacture dense metal solid components. Because the arc is used as the energy beam, the heat input is high and the forming speed is fast. It ...

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Problems solved by technology

In the existing manufacturing process, although most of the processes have high molding efficiency and have high benefits for the manufacture of large parts, it is often embarrassing when the manufacturing requires the precision of the parts but is not convenient for subsequent machining, and the surface is rough. High precision, low dimensional accuracy, usually the width of the formed single melting channel is greater than 5mm, it is difficult to manufacture high-precision structural parts that meet the requirements

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