CN101858419A - One-step forming fast precise die-casting automobile speed changing box - Google Patents
One-step forming fast precise die-casting automobile speed changing box Download PDFInfo
- Publication number
- CN101858419A CN101858419A CN200910068411A CN200910068411A CN101858419A CN 101858419 A CN101858419 A CN 101858419A CN 200910068411 A CN200910068411 A CN 200910068411A CN 200910068411 A CN200910068411 A CN 200910068411A CN 101858419 A CN101858419 A CN 101858419A
- Authority
- CN
- China
- Prior art keywords
- powder
- layer
- speed changing
- changing box
- automobile speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a one-step forming fast precise die-casting automobile speed changing box, which comprises forming materials of various sinterable powder, including paraffin, plastics, low-melting-point metal powder or mixed powder thereof. The invention is characterized in that a layer of forming materials, i.e. heat-sensitive powder with the thickness between 0.1 mm and 0.2 mm is uniformly paved on a work table; an auxiliary heating device heats the forming materials to a temperature lower than the melting point, the powder layer is selectively irradiated by laser under the control of a computer so that the irradiated powder reaches the sintering temperature, and surface layer adhesion occurs between powder grains, so the powder grains are sintered together; and then, the work table is lowered down by the height of a layer, and a layer of powder is paved on the sintered layer, so the automobile speed changing box manufactured according to the design requirements is fast formed through sintering layer by layer, and then, water is introduced for cooling. Through the technical scheme, the automobile speed changing box with a complicated structure can be fast formed, the production cost is lower, the production rate is higher, at the same time, the operation is simple and convenient, and the production efficiency is improved.
Description
Technical field
The present invention relates to auto parts and components and make the field, particularly relate to a kind of one-step forming fast precise die-casting automobile speed changing box.
Background technique
At present, the rapid shaping manufacturing technology that is used for directly making metallic element in automobile manufacturing field mainly contains two classes: 1, precinct laser sintering SLS; 2, laser melting coating is the metalwork straight forming technology of base.Wherein the precinct laser sintering technology is owing to moulding is fast, raw material utilization rate advantages of higher is widely used in the manufacturing of auto parts and components, manufacturing as clutch, engine intake manifold, one of the maximum characteristic of precinct laser sintering are that forming process and complexity are irrelevant simultaneously, therefore are particularly suitable for parts such as the extremely complicated engine cylinder-body of internal structure, cylinder cap, air inlet-outlet pipe; Another important characteristic is that shaping material is extensive, particularly can therefore, can cast out the parts of automobile fast by combining with foundry engieering with the resin sand of casting and the expendable pattern material moulding that can disappear.Yet,, be not used in the manufacturing of automobile gearbox though this technology is widely used in the manufacturing of auto parts.
Summary of the invention
Purpose of the present invention is exactly in order to solve above-mentioned existing issue, but and provides a kind of one-step forming fast precise die-casting automobile speed changing box, its stock utilization height, formed precision height, and shaping speed is fast.
In order to achieve the above object, the technical solution used in the present invention is: one-step forming fast precise die-casting automobile speed changing box, its shaping material is various sinterable powders, comprise paraffin, plastics, low melting metal powder, or their mixed-powder, it is characterized in that: the uniform above-mentioned shaping material of shop one deck on worktable, i.e. temperature-sensitive powder, thick about 0.1mm～0.2mm; Assisted heating device is heated the following temperature of fusing point; Utilize laser under computer control powder bed selectively to be shone, make illuminated powder reach its sintering temperature, the generation top layer is bonding between powder particle, thereby sintering together; The worktable layer height that descends is repaving one deck powder on the sinter layer then, the automobile gearbox of sintering for quick formation so successively for making according to designing requirement, and water flowing is cooled off then.
The operating temperature of above-mentioned temperature-sensitive powder is at 98 ℃～102 ℃;
Above-mentioned water flowing coolant water temperature is at 22 ℃～25 ℃.
Beneficial effect of the present invention: by the technical program, but the complicated automobile gearbox of rapid shaping structure, and the utilization rate of raw materials height, about 100%; The formed precision height, speed is fast; Plastic automobile gearbox; Cost of production is lower, and productivity is higher, and is simultaneously simple to operation, improved manufacturing efficiency.
Embodiment
Specific embodiment:
One-step forming fast precise die-casting automobile speed changing box, its shaping material is various sinterable powders, comprises paraffin, plastics, low melting metal powder, or their mixed-powder.
Its technological scheme is:
(1) the uniform above-mentioned shaping material of shop one deck on worktable, i.e. temperature-sensitive powder, shop powder parameter is: thick about 0.1mm～0.2mm; Moulding cylinder dropping distance 0.15mm, material cylinder climb 0.2mm, Carrier motor speed 5unit/s, Roller motor speed 0.3unit/s;
(2) assisted heating device is heated the following temperature of fusing point, for the heating-up temperature that prevents the general bottom of part deformation will be higher than about 120 ℃;
(3) utilize laser under computer control, powder bed selectively to be shone, make illuminated powder reach its sintering temperature, it is bonding that the top layer takes place between powder particle, thereby sintering together, the control signal of laser output power size is the square wave of the Transistor-Transistor Logic level of 5kHz～25kHz, and sweep rate is 1000mm/s～3000mm/s; Laser power is 10W～20W;
(4) the worktable layer height that descends then, repaving one deck powder on the sinter layer, so successively sinter 3D solid into, i.e. the entity that forms of the design requirement sintering of automobile gearbox, moulding entity overall dimensions is 450mm * 450mm * 450mm, and molding time is no longer than 48h;
(5) last water flowing is cooled off, and water temperature is at 22 ℃～25 ℃.
The above only is a kind of embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (3)
1. one-step forming fast precise die-casting automobile speed changing box, its shaping material is various sinterable powders, comprise paraffin, plastics, low melting metal powder, or their mixed-powder, it is characterized in that: on worktable, spread the above-mentioned shaping material of one deck uniformly, be the temperature-sensitive powder, thick about 0.1mm～0.2mm; Assisted heating device is heated the following temperature of fusing point; Utilize laser under computer control powder bed selectively to be shone, make illuminated powder reach its sintering temperature, the generation top layer is bonding between powder particle, thereby sintering together; The worktable layer height that descends is repaving one deck powder on the sinter layer then, the automobile gearbox of sintering for quick formation so successively for making according to designing requirement, and water flowing is cooled off then.
2. one-step forming fast precise die-casting automobile speed changing box according to claim 1 is characterized in that: the operating temperature of described temperature-sensitive powder is at 98 ℃～102 ℃.
3. one-step forming fast precise die-casting automobile speed changing box according to claim 1 is characterized in that: described water flowing coolant water temperature is at 22 ℃～25 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068411A CN101858419A (en) | 2009-04-10 | 2009-04-10 | One-step forming fast precise die-casting automobile speed changing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068411A CN101858419A (en) | 2009-04-10 | 2009-04-10 | One-step forming fast precise die-casting automobile speed changing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101858419A true CN101858419A (en) | 2010-10-13 |
Family
ID=42944501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910068411A Pending CN101858419A (en) | 2009-04-10 | 2009-04-10 | One-step forming fast precise die-casting automobile speed changing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101858419A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397991A (en) * | 2011-11-25 | 2012-04-04 | 中国一拖集团有限公司 | Quick manufacturing method for die-free casting sand mold |
| CN102400136A (en) * | 2011-10-26 | 2012-04-04 | 昆明理工大学 | Surface modification method of ferritic stainless steel for automobile exhaust pipe through laser cladding |
| CN103286274A (en) * | 2012-02-29 | 2013-09-11 | 福特汽车公司 | Mold core for forming a molding tool |
| CN104972677A (en) * | 2014-04-14 | 2015-10-14 | 宁波华翔汽车零部件研发有限公司 | Automobile part carbon fiber composite material 3D printing process |
-
2009
- 2009-04-10 CN CN200910068411A patent/CN101858419A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400136A (en) * | 2011-10-26 | 2012-04-04 | 昆明理工大学 | Surface modification method of ferritic stainless steel for automobile exhaust pipe through laser cladding |
| CN102400136B (en) * | 2011-10-26 | 2014-02-12 | 昆明理工大学 | Surface modification method of ferritic stainless steel for automobile exhaust pipe through laser cladding |
| CN102397991A (en) * | 2011-11-25 | 2012-04-04 | 中国一拖集团有限公司 | Quick manufacturing method for die-free casting sand mold |
| CN102397991B (en) * | 2011-11-25 | 2013-07-24 | 中国一拖集团有限公司 | Quick manufacturing method for die-free casting sand mold |
| CN103286274A (en) * | 2012-02-29 | 2013-09-11 | 福特汽车公司 | Mold core for forming a molding tool |
| CN104972677A (en) * | 2014-04-14 | 2015-10-14 | 宁波华翔汽车零部件研发有限公司 | Automobile part carbon fiber composite material 3D printing process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104526838B (en) | Method for 3D ceramic printing forming | |
| CN101837427B (en) | Laser sintering sand, preparation method thereof, sand core and preparation method thereof | |
| CN100446897C (en) | Method for precinct laser sintering fast manufacture metal die | |
| TW201900427A (en) | Feed for 3D printing as well as preparation method thereof and application thereof | |
| JP6268380B2 (en) | Method for manufacturing a part having an internal hole structure | |
| CN1970202A (en) | Method for selective laser sintering for quick and direct production of injection die | |
| CN107745068B (en) | A kind of laser 3D printing precoated sand and preparation method thereof | |
| CN1850396A (en) | Method for rapidly manufacturing injection-mould insert with follow-cooling passageway | |
| CN106187195A (en) | Use the method that selective laser sintering technique prepares silicon carbide ceramics | |
| CN102294478A (en) | Precise spray forming device and method for realizing quick mould manufacturing by same | |
| CN105328121A (en) | Die-free fast casting method based on fused deposition technology | |
| CN101858419A (en) | One-step forming fast precise die-casting automobile speed changing box | |
| CN101670437A (en) | Mould making method with conformal cooling pipe | |
| CN104446392A (en) | Calcium-doped inorganic nanocomposite material for 3D printing and preparation method of calcium-doped inorganic nanocomposite material | |
| CN103223466A (en) | Rapid metal die manufacturing method for turbine blades | |
| CN104788081A (en) | Preparation method of aluminum oxide powder 3D printing material | |
| CN105081281A (en) | Metal mold low-pressure casting process for cast-aluminum gearbox body of high-speed train | |
| CN102554229B (en) | Method for preparing copper radiating fins of gradient structures by means of injection forming | |
| CN105215260A (en) | A kind of for the low precoated sand preparation method that gets angry of laser sintered 3D printing | |
| CN104972129A (en) | Method for manufacturing iron-based alloy part | |
| CN105215281A (en) | A kind of preparation method printing quartzy precoated sand for 3D | |
| CN203650997U (en) | Discharge cooling device for 3D (three-dimensional) printer | |
| CN114535498A (en) | Composite manufacturing method for increasing and decreasing materials of frozen sand mold | |
| CN104446393A (en) | Yttrium-doped inorganic nanocomposite material for 3D printing and preparation method of yttrium-doped inorganic nanocomposite material | |
| CN103056369A (en) | Process for producing part by powder metallurgy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Ya Document name: the First Notification of an Office Action |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101013 |