Method for mouldless directly manufacture of parts and mould
A manufacturing method and technology of parts, applied in the field of rapid manufacturing of parts, can solve the problems of insufficient energy and low forming precision, and achieve the effects of low equipment and operation costs, low forming costs, and good organizational properties
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Embodiment 1
[0009] Embodiment 1: first adopt the plasma deposition (surfacing) spray gun of numerical control, according to the requirement of part forming, use iron-nickel-chromium alloy wire material, on the substrate according to the digitized forming path obtained by three-dimensional CAD model deposition forming; Secondly, the laser beam emitted by the YAG solid-state laser with a power of 50w is combined with the plasma arc with a transfer arc current of 150A to achieve the purpose of compressing the plasma arc column and improving the forming accuracy. In order to achieve the required forming height, the above steps can be carried out several times until the height requirement is reached.
Embodiment 2
[0010] Example 2: According to the requirements of part forming, nickel-based alloy powder is used to transfer a plasma arc with a transfer arc current of 120A and a Q-switched laser beam with a power of 150w on the substrate according to the digital deposition forming path obtained from the three-dimensional CAD model Composite forming. The above steps are carried out several times, and the layer-by-layer deposition forming reaches the required height.
Embodiment 3
[0011] Example 3: Using nickel-aluminum intermetallic compound powder, on the substrate according to the digital deposition forming path obtained from the three-dimensional CAD model, a plasma arc with a transferred arc current of 180A and a Q-switched laser beam with a power of 200w are combined, layer by layer Deposition forming; secondly, during the forming process or after forming, the Q-switched laser is used to irradiate the surface of the forming body from the front, and the laser surface removal micro-finishing is performed to improve the surface quality.
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