Preparation method of TC4 titanium alloy laser cladding reinforced coating
A laser cladding and titanium alloy technology, applied in the field of laser additive manufacturing, can solve the problems of inability to guarantee the service life of parts, low hardness, environmental pollution, etc., and achieve the effects of easy access, good wettability, and good toughness
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Example Embodiment
[0023] Example 1:
[0024] The preparation method of the TC4 titanium alloy laser cladding enhanced coating provided by this embodiment includes the following steps in order:
[0025] Step 1: Use TC4 titanium alloy material as the cladding substrate, polish its surface with 600-grit sandpaper, and then use acetone solution to remove oil stains and rust on the surface to pretreat the substrate;
[0026] Step 2: Mix the titanium carbide powder and TC4 titanium alloy powder uniformly at a mass ratio of 20:80 to make a mixed powder, and then spread a layer of mixed alloy powder on the surface of the above-mentioned pretreated substrate; the thickness of the mixed alloy powder layer 3mm;
[0027] Step 3: Using argon gas as the protective gas, the above mixed alloy powder was clad on the surface of the substrate with a high-power semiconductor laser at a spot width of 6mm, a laser power of 1200W, a scanning speed of 3mm / s, and a focal length of 160mm, and then rapidly at room tempe...
Example Embodiment
[0029] Embodiment 2:
[0030] The preparation method of the TC4 titanium alloy laser cladding enhanced coating provided by this embodiment includes the following steps in order:
[0031] Step 1: Use TC4 titanium alloy material as the cladding substrate, polish its surface with 600-grit sandpaper, and then use acetone solution to remove oil stains and rust on the surface to pretreat the substrate;
[0032] Step 2: Mix the titanium carbide powder and TC4 titanium alloy powder uniformly at a mass ratio of 30:70 to make a mixed powder, and then spread a layer of mixed alloy powder on the surface of the above-mentioned pretreated substrate; the thickness of the mixed alloy powder layer 3.5mm;
[0033] Step 3: Using argon gas as the protective gas, the above mixed alloy powder was clad on the surface of the substrate using a high-power semiconductor laser at a spot width of 10mm, a laser power of 1200W, a scanning speed of 3mm / s, and a focal length of 160mm, and then rapidly at roo...
Example Embodiment
[0035] Embodiment three:
[0036] The preparation method of the TC4 titanium alloy laser cladding enhanced coating provided by this embodiment includes the following steps in order:
[0037] Step 1: Use TC4 titanium alloy material as the cladding substrate, polish its surface with 600-grit sandpaper, and then use acetone solution to remove oil stains and rust on the surface to pretreat the substrate;
[0038] Step 2: Mix the titanium carbide powder and TC4 titanium alloy powder uniformly at a mass ratio of 40:60 to make a mixed powder, and then spread a layer of mixed alloy powder on the surface of the above-mentioned pretreated substrate; the thickness of the mixed alloy powder layer 4mm;
[0039] Step 3: Using argon gas as the protective gas, the above mixed alloy powder was clad on the surface of the substrate with a high-power semiconductor laser at a spot width of 8mm, a laser power of 1200W, a scanning speed of 3mm / s, and a focal length of 160mm, and then rapidly at roo...
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