CN103862043B - Improve the device of non-magnetic metal powder selective laser sintering forming quality - Google Patents
Improve the device of non-magnetic metal powder selective laser sintering forming quality Download PDFInfo
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- CN103862043B CN103862043B CN201410079189.8A CN201410079189A CN103862043B CN 103862043 B CN103862043 B CN 103862043B CN 201410079189 A CN201410079189 A CN 201410079189A CN 103862043 B CN103862043 B CN 103862043B
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- powder
- sucker
- side plate
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- powder groove
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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 invention discloses a kind of device improving non-magnetic metal powder selective laser sintering forming quality, comprise the powder groove be made up of four side plates and a base plate, one horizontal shelf that can move up and down is set in this powder groove, it is characterized in that, side plate and supporting plate are made up of insulating materials, and outside the side plate that powder groove two is relative, install the sucker of electromagnetism or permanent magnetism additional, one of them sucker is N pole, another sucker is S pole, installs battery lead plate additional at two other relative side plate inwall of powder groove.
Description
Technical field
The present invention relates to a kind of metal laser direct-forming device, can be used for the paving powder sintering figuration manufacture metalwork etc. of non-magnetic metal powder.
Background technology
In metal laser direct-forming field, laser metal constituency sintering is one of hot fields of research, it is that metal powder is directly layered on powder groove supporting plate, then directly burns powder with laser, and powder smelting is bondd formed metal element, compared with this forming mode is shaped with traditional machining, have a lot of advantage, it is without any need for mould, and principle is simple, the research and development time of product can be shortened, save R&D costs.But paving powder sintering is shaped and also has the shortcoming of self, drip molding can produce distortion because of thermal stress, the density of drip molding has much room for improvement, adopt the accumulation of as far as possible falling stress by rational technological parameter to carry out controlling distortion mostly for thermal stress deformation problem, for the density improving paving powder sintering drip molding, substantially be adopt paving powder rod roll extrusion mode to increase powder density, this mode has certain effect to increase profiled member density, but this mode also has weak point, the effect of certain power can produced with paving powder direction straight down exactly when powder-laying roller paving powder rolls powder, formed metal element can be subjected to displacement under force and causes the skew of drip molding and affect the quality of drip molding.
Summary of the invention
In order to improve the quality of the selective laser sintering drip molding of non-magnetic metal powder, the present invention proposes a kind of new method, offsets under force when effectively can improve the density of drip molding and reduce drip molding paving powder; Adopt electrical conductor cutting magnetic induction line movement technique in magnetic field, be that non-magnetic metal powder generation compresses straight down, increase the density of powder, also reach the object of fixing drip molding simultaneously.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
A kind of device improving non-magnetic metal powder selective laser sintering forming quality, comprise the powder groove be made up of four side plates and a base plate, one horizontal shelf that can move up and down is set in this powder groove, it is characterized in that, side plate and supporting plate are made up of insulating materials, and outside the side plate that powder groove two is relative, install the sucker of electromagnetism or permanent magnetism additional, one of them sucker is N pole, another sucker is S pole, installs battery lead plate additional at two other relative side plate inwall of powder groove.
In such scheme, the outer wall of side plate is close to by described sucker, and sucker lower end is fixed on base plate.Described battery lead plate is close to side plate inwall and is connected with side plate inwall plane contact
Compared with prior art, advantage of the present invention is: the quality that effectively can improve drip molding; Adopt and respectively install magnechuck additional about powder groove outside, make to form magnetic field in powder groove to magnechuck energising; Respectively battery lead plate is installed additional before and after powder groove inside, leading to direct current by battery lead plate to powder in powder groove makes powder bed generation electromagnetic force compress raising powder density downwards, drip molding conduction also produces downward thrust and reaches fixing object simultaneously, prevent from producing drip molding displacement because of the paving powder roll extrusion of powder-laying roller during paving powder, effectively can improve the total quality of drip molding.Feature of the present invention is: principle is simple, and economic environmental protection, effectively can promote the feature of drip molding.
Accompanying drawing explanation
Fig. 1 is the structure chart of apparatus of the present invention.Wherein a is stereogram; B is the front view of a figure.
Fig. 2 is that the A-A of Fig. 1 b is to sectional view.
In Fig. 1-2: 1, sucker; 2, insulating powder groove; 3, powder slot insulation supporting plate; 4, powder trough floor; 5, bolt; 6, holddown groove; 7, push rod; 8, battery lead plate.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
With reference to figure 1, Fig. 2, a kind of device for improving non-magnetic metal powder selective laser sintering forming quality,
Comprise the powder groove be made up of the side plate 2 of four insulation and a base plate 4, arrange a horizontal shelf 3 in this powder groove, powder groove and supporting plate are that electrically non-conductive material is made, and its effect is to provide insulation conditions, prevent electric leakage.Sucker 1(electromagnetism or permanent magnetism is installed additional outside the side plate that powder groove two is relative), one of them sucker is N pole, and another sucker is S pole (S pole and N is extremely relative), and effect makes to form magnetic field in powder groove; Battery lead plate 8 is installed additional at two other relative side plate inwall of powder groove, side plate is equipped with hole to connect wire to battery lead plate, direct current is applied to two electrode plate, electric current passes to the powder bed in powder groove by battery lead plate, powder bed conducts electricity, in magnetic field, cutting magnetic induction line motion, makes powder compress straight down, increases powder density; Drip molding conducts electricity and produces motion powder compaction straight down in magnetic field, reaches fixing drip molding object, can control required pressure size by changing size of current.
Side plate 2 and base plate 4 are bolted fixing; Sucker 1 is connected and fixed by bolt and base plate 4, and battery lead plate 8 is connected by bolt plane with side plate 2; Push rod 7 is placed in holddown groove 6, and holddown groove 6 is fixedly connected with the supporting plate 3 of insulation by bolt; Apparatus of the present invention are divided into " standing part " and " motion parts ", and standing part comprises: the powder groove that side plate and base plate are formed and magnechuck and battery lead plate.Motion parts comprises: supporting plate, push rod, holddown groove." standing part " is connected and fixed by the bolt hole bolt above powder trough floor 4 and outside; " motion parts " push rod 7 is connected with linear servo-actuator makes " motion parts " produce precise vertical motion.When formed metal element, nonmagnetic metal powder is spread in powder groove, open magnechuck (sucker is the words of electromagnet) simultaneously, make to form magnetic field in insulating powder groove 2, then lead to direct current to battery lead plate 8, in magnetic field, electrical conductor produces cutting magnetic induction line motion, powder bed is compressed straight down, density, simultaneously drip molding that reaching increases non-magnetic metal powder, owing to self also will produce the trend of cutting magnetic induction line motion, therefore can compress, straight down to reach the object of fixing drip molding.
Claims (1)
1. one kind is improved the device of non-magnetic metal powder selective laser sintering forming quality, comprise the powder groove be made up of four side plates and a base plate, one horizontal shelf that can move up and down is set in this powder groove, it is characterized in that, side plate and supporting plate are made up of insulating materials, install the sucker of electromagnetism or permanent magnetism outside the side plate that powder groove two is relative additional, one of them sucker is N pole, another sucker is S pole, and the outer wall of side plate is close to by sucker, and sucker lower end is fixed on base plate; Install battery lead plate additional at two other relative side plate inwall of powder groove, battery lead plate is close to side plate inwall and is connected with side plate inwall plane contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410079189.8A CN103862043B (en) | 2014-03-05 | 2014-03-05 | Improve the device of non-magnetic metal powder selective laser sintering forming quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410079189.8A CN103862043B (en) | 2014-03-05 | 2014-03-05 | Improve the device of non-magnetic metal powder selective laser sintering forming quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103862043A CN103862043A (en) | 2014-06-18 |
| CN103862043B true CN103862043B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410079189.8A Expired - Fee Related CN103862043B (en) | 2014-03-05 | 2014-03-05 | Improve the device of non-magnetic metal powder selective laser sintering forming quality |
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| Country | Link |
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| CN (1) | CN103862043B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722758B (en) * | 2015-03-04 | 2017-01-25 | 西安交通大学 | Device for improving density of part directly formed through selective laser melting process |
| CN114515840A (en) * | 2022-04-21 | 2022-05-20 | 济南森峰激光科技股份有限公司 | Laser rapid forming device based on magnetic forming space and powder paving method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672156A (en) * | 2011-03-11 | 2012-09-19 | 北京有色金属研究总院 | Production device of pre-alloy powder |
| CN102703898A (en) * | 2012-07-03 | 2012-10-03 | 昆明理工大学 | Method for refining solidified structure of laser cladding layer by using alternating magnetic field and device thereof |
| CN102950285A (en) * | 2012-11-02 | 2013-03-06 | 华中科技大学 | Quick manufacture method and device for metal part under action of magnetic field. |
| CN103418985A (en) * | 2013-07-30 | 2013-12-04 | 华南理工大学 | Combination manufacturing method and device for injection mold with conformal cooling water path |
| CN103447528A (en) * | 2013-07-26 | 2013-12-18 | 西安交通大学 | Foldable changeable forming device for selective laser melting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6717504B2 (en) * | 2000-10-25 | 2004-04-06 | Nec Tokin Corporation | Magnetic core including bias magnet and inductor component using the same |
| US20030071269A1 (en) * | 2001-10-15 | 2003-04-17 | Tseng Ampere A. | Apparatus and method for laser selective bonding technique for making sealed or enclosed microchannel structures |
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2014
- 2014-03-05 CN CN201410079189.8A patent/CN103862043B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672156A (en) * | 2011-03-11 | 2012-09-19 | 北京有色金属研究总院 | Production device of pre-alloy powder |
| CN102703898A (en) * | 2012-07-03 | 2012-10-03 | 昆明理工大学 | Method for refining solidified structure of laser cladding layer by using alternating magnetic field and device thereof |
| CN102950285A (en) * | 2012-11-02 | 2013-03-06 | 华中科技大学 | Quick manufacture method and device for metal part under action of magnetic field. |
| CN103447528A (en) * | 2013-07-26 | 2013-12-18 | 西安交通大学 | Foldable changeable forming device for selective laser melting |
| CN103418985A (en) * | 2013-07-30 | 2013-12-04 | 华南理工大学 | Combination manufacturing method and device for injection mold with conformal cooling water path |
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| CN103862043A (en) | 2014-06-18 |
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