Electric arc additive manufacturing method for silicon-containing magnesium alloy
A silicon-magnesium alloy and additive manufacturing technology, which is applied in the field of arc additive manufacturing of silicon-containing magnesium alloys, can solve problems such as stress concentration, inapplicability, and reduced alloy properties, and achieve the effects of improving quality, avoiding dust hazards and high performance.
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Embodiment 1
[0051] This embodiment provides a method for AS42 magnesium alloy wire arc additive manufacturing (wall thickness 11.5mm) thin-walled square, including the following steps:
[0052] (1) Preparation before the experiment: use 3D software to construct a CAD model of 70 mm × 25 mm × 45 mm (such as figure 2 As shown), the slice processing is set with a single layer height of 1.3mm and a welding torch moving speed of 150mm / min. The corresponding processing program is edited and imported into the CNC machine tool control system; the AZ magnesium alloy substrate with a size of 100mm×100mm is polished, washed with alcohol, After a series of cleaning such as drying, fix it on the machine tool; straighten the AS42 magnesium alloy wire with a diameter of 1.2mm and send it to the place 5mm below the tungsten electrode through the wire feeder to ensure that the wire feeding angle is 60° and the flow of pure argon gas At 20L / min; open the wire feeder and adjust the wire feeding speed to 18...
Embodiment 2
[0059] This embodiment provides a method for AS42 magnesium alloy wire arc additive manufacturing (wall thickness 8mm) thin-walled square, including the following steps:
[0060] (1) Preparation before the experiment: use 3D software to construct a CAD model of 70 mm × 25 mm × 52 mm (such as figure 2 As shown), the slice processing is set with a single layer height of 2.2mm and a welding torch moving speed of 150mm / min. The corresponding processing program is edited and imported into the CNC machine tool control system; the AZ magnesium alloy substrate with a size of 100mm×100mm is polished, washed with alcohol, After a series of cleaning such as drying, fix it on the machine tool; straighten the AS42 magnesium alloy wire with a diameter of 1.2mm and send it to the place 5mm below the tungsten electrode through the wire feeder to ensure that the wire feeding angle is 60° and the flow of pure argon gas At 20L / min; open the wire feeder and adjust the wire feeding speed to 140cm...
Embodiment 3
[0067] This embodiment provides a method for AS42 magnesium alloy wire arc additive manufacturing (wall thickness 6mm) thin-walled square, including the following steps:
[0068] (1) Preparation before the experiment: use 3D software to construct a CAD model of 70 mm × 25 mm × 37 mm (such as figure 2 As shown), the slice processing is set with a single layer height of 1.5mm and a welding torch moving speed of 150mm / min. The corresponding processing program is edited and imported into the CNC machine tool control system; the AZ magnesium alloy substrate with a size of 100mm×100mm is polished, washed with alcohol, After a series of cleaning such as drying, fix it on the machine tool; straighten the AS42 magnesium alloy wire with a diameter of 1.2mm and send it to the place 5mm below the tungsten electrode through the wire feeder to ensure that the wire feeding angle is 60° and the flow of pure argon gas At 20L / min; open the wire feeder and adjust the wire feeding speed to 100cm...
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Abstract
Description
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Application Information
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