CN203140770U - Forming table of selective laser sintering device - Google Patents
Forming table of selective laser sintering device Download PDFInfo
- Publication number
- CN203140770U CN203140770U CN2013201716240U CN201320171624U CN203140770U CN 203140770 U CN203140770 U CN 203140770U CN 2013201716240 U CN2013201716240 U CN 2013201716240U CN 201320171624 U CN201320171624 U CN 201320171624U CN 203140770 U CN203140770 U CN 203140770U
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- Prior art keywords
- model
- forming
- selective laser
- base
- laser sintering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model relates to a forming table of a selective laser sintering device. The forming table comprises a base and a forming platform paved on the base, wherein the forming platform comprises a PE core veneer and an aluminum alloy plate which are stacked together in an up-and-down mode, and the forming platform is fixed on the base through screws. The forming table of the selective laser sintering device is simple in structure and low in cost, rigidity, flatness and uniformity of working temperature of the forming table are promoted, deformation of the forming table caused by thermal expansion and cold contraction is prevented, and thus forming quality of a product is prevented from being affected.
Description
Technical field
The utility model relates to a kind of model forming platform, is specifically related to a kind of workbench of selective laser sintering equipment.
Background technology
Selective laser sintering (being called for short SLS) technology is to utilize the principle of dusty material sintering under the laser irradiation, is piled into type under computer control layer by layer.The SLS process is to adopt powder-laying roller that one deck dusty material is tiled in the upper surface of molded parts, and the control laser beam scans at bisque according to the cross section profile of this layer, makes powder sintered and realizes bonding with following in type part.After a layer cross section sintering was intact, the descend thickness of a layer of shaping work platform, stone roller is layer overlay powder uniformly densely in the above again, carried out the sintering of a new layer cross section, until finishing whole model.Thereby the locating effect of model has directly influenced Forming Quality in forming process.Yet the model of prior art is not fixed model in sintering process, and in addition, expanding with heat and contract with cold of shaping work platform makes model generation displacement also can influence the SLS Forming Quality.Therefore, the shortcoming that exists in the prior art is necessary prior art is made improvements.
The utility model content
The purpose of this utility model is to overcome shortcoming of the prior art with not enough, provide a kind of simple in structure, cost is low, the workbench of the selective laser sintering equipment of good forming effect.
The utility model is to realize by following technical scheme: the workbench of selective laser sintering equipment, described workbench comprises base and is layed in shaped platform on the base, described shaped platform comprises upper and lower PE central layer and the aluminium alloy plate that is superimposed, and described shaped platform is fixed on the base by screw.
The thickness of described PE central layer is greater than 4mm, and the thickness of described aluminium alloy plate is greater than 0.5mm.
Described shaped platform is that bottom side length is the cuboid of 280mm.
With respect to prior art, the utility model is by being equipped with shaped platform at base, make replacing and the simple installation of workbench, utilize the thermal conductive resin of workbench to make the more uniform temperature of workbench, when the ground floor of model sintering, dusty material and the fusion of PE central layer are after the laser pulse, dusty material and PE central layer surface are cooled off simultaneously and are consolidated, and can not be shifted when making the model sintering.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the workbench of the utility model selective laser sintering equipment
The accompanying drawing identifier declaration:
1, base
2, aluminium alloy plate
3, PE central layer
4, screw
The specific embodiment
The workbench of selective laser sintering equipment of the present utility model as shown in Figure 1, this workbench comprises base 1 and is layed in shaped platform on the base 1, this shaped platform comprises the upper and lower PE central layer 3 that is superimposed and aluminium alloy plate 2, and this shaped platform is fixed on the base 1 by screw 4.The chemical name of lucite is polymethyl methacrylate, and the English PMMA that is called for short is formed by methyl methacrylate polymerization.
The thickness of PE central layer 3 is greater than 4mm, and the thickness of aluminium alloy plate 2 is greater than 0.5mm.Be the cuboid of 280mm and whole shaped platform is bottom side length.
During the work of selective laser sintering equipment, model need be realized dish and disk stripping at workbench:
Last dish:
1, in Three-dimensional Design Software, adds complementary model base to three-dimensional model.The general height of model base is 2～3mm.
2, laser pulse scans at dusty material, not only makes the fusion of powder material, and makes PE central layer 3 melt surfaces.After the laser pulse, dusty material and PE central layer 3 surfaces are cooled off simultaneously and are consolidated.Bed thickness height of workbench decline, powder-laying roller is the closely knit uniform dusty material of layer overlay again.After the laser scanning multilayer, the model base of generation just is bonded together with PE central layer 3 securely, and the real required model on top can not moved in forming process.
Disk stripping:
1, behind the intact last one deck powder material of laser scanning sintering, waits for 5～10 minutes.
2, make workbench rise to initial position.
3, the powder material around the cleaning model.
4, further clear up powder material on the model with vacuum cleaner, model and workbench are appeared.
5, make the perching knife edge of a knife facing to model finished product bottom, blade is pasting the workbench surface, and little hammer raps hilt continuously, and the edge of a knife is inserted between model finished product and the workbench gradually, until the two separation.
The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or distortion are not broken away from spirit and scope of the present utility model, if these changes and distortion belong within claim of the present utility model and the equivalent technologies scope, then the utility model also is intended to comprise these changes and distortion.
Claims (3)
1. the workbench of selective laser sintering equipment, it is characterized in that: described workbench comprises base and is layed in shaped platform on the base, described shaped platform comprises upper and lower PE central layer and the aluminium alloy plate that is superimposed, and described shaped platform is fixed on the base by screw.
2. the workbench of selective laser sintering equipment according to claim 1, it is characterized in that: the thickness of described PE central layer is greater than 4mm, and the thickness of described aluminium alloy plate is greater than 0.5mm.
3. the workbench of selective laser sintering equipment according to claim 1, it is characterized in that: described shaped platform is that bottom side length is the cuboid of 280mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201716240U CN203140770U (en) | 2013-04-08 | 2013-04-08 | Forming table of selective laser sintering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201716240U CN203140770U (en) | 2013-04-08 | 2013-04-08 | Forming table of selective laser sintering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140770U true CN203140770U (en) | 2013-08-21 |
Family
ID=48968326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201716240U Expired - Fee Related CN203140770U (en) | 2013-04-08 | 2013-04-08 | Forming table of selective laser sintering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203140770U (en) |
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2013
- 2013-04-08 CN CN2013201716240U patent/CN203140770U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170408 |