Laser selective melting forming method of copper-chromium alloy part
A technology of laser selective melting and copper-chromium alloy, which is applied in the direction of process efficiency improvement, energy efficiency improvement, additive processing, etc., can solve the problems such as the production efficiency of complex parts that cannot be directly formed, achieve the application value of mass production, and shorten the production cycle , The effect of improving the forming efficiency
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Embodiment 1
[0039] A laser selective melting and forming method of a copper-chromium alloy part of the present invention is specifically implemented according to the following steps:
[0040] Step 1, pretreating the Cu-Cr alloy powder;
[0041] Cu-Cr alloy powder is composed of the following components according to the mass fraction: Cr accounts for 5% of the mass fraction, Cu is the balance, and the sum of the percentages of the above components is 100%;
[0042] The pretreatment is as follows: dry the Cu-Cr alloy powder in a vacuum environment oven with a temperature of 100°C and an atmospheric pressure not greater than -0.05MPa for 2 hours, then take it out after vacuum cooling for 2 hours, and then sieve the powder with a 200-mesh sieve to obtain ;
[0043] Among them, the particle size of Cu-Cr alloy powder is between 10-53um;
[0044] Step 2, preparation of program files and SLM equipment before forming;
[0045] Step 2.1, preparation of program files;
[0046] First use the 3D ...
Embodiment 2
[0053] A laser selective melting and forming method of a copper-chromium alloy part of the present invention is specifically implemented according to the following steps:
[0054] Step 1, pretreating the Cu-Cr alloy powder;
[0055] Cu-Cr alloy powder is composed of the following components according to the mass fraction: Cr accounts for 10% of the mass fraction, Cu is the balance, and the sum of the percentages of the above components is 100%;
[0056] The pretreatment is as follows: dry the Cu-Cr alloy powder in a vacuum environment oven with a temperature of 130°C and an atmospheric pressure not greater than -0.05MPa for 4 hours, then take it out after vacuum cooling for 2 hours, and then sieve the powder with a 240-mesh sieve to obtain ;
[0057] Among them, the particle size of Cu-Cr alloy powder is between 10-53um;
[0058] Step 2, preparation of program files and SLM equipment before forming;
[0059] Step 2.1, preparation of program files;
[0060] First use the 3D...
Embodiment 3
[0067] A laser selective melting and forming method of a copper-chromium alloy part of the present invention is specifically implemented according to the following steps:
[0068] Step 1, pretreating the Cu-Cr alloy powder;
[0069] Cu-Cr alloy powder is composed of the following components according to the mass fraction: Cr accounts for 20% of the mass fraction, Cu is the balance, and the sum of the percentages of the above components is 100%;
[0070] The pretreatment is as follows: dry the Cu-Cr alloy powder in a vacuum environment oven with a temperature of 100-150°C and an atmospheric pressure not greater than -0.05MPa for 2-5 hours, then take it out after vacuum cooling for 2 hours, and then use a 220-mesh screen to sieve powder, that is;
[0071] Among them, the particle size of Cu-Cr alloy powder is between 10-53um;
[0072] Step 2, preparation of program files and SLM equipment before forming;
[0073] Step 2.1, preparation of program files;
[0074] First use the...
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