CN105170988B - A kind of method and device for reclaiming residual powder on metal increasing material manufacturing substrate - Google Patents
A kind of method and device for reclaiming residual powder on metal increasing material manufacturing substrate Download PDFInfo
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- CN105170988B CN105170988B CN201510633551.6A CN201510633551A CN105170988B CN 105170988 B CN105170988 B CN 105170988B CN 201510633551 A CN201510633551 A CN 201510633551A CN 105170988 B CN105170988 B CN 105170988B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/22—Driving means
- B22F12/226—Driving means for rotary motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
- B22F12/37—Rotatable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of method and device for reclaiming residual powder on metal increasing material manufacturing substrate, including gas-tight silo, the pneumatic vibrator being arranged on outside gas-tight silo, the vibration hold assembly for being used to transmit vibration being arranged on gas-tight silo madial wall, hold assembly connection pneumatic vibrator is vibrated, vibration hold assembly is used for the substrate for clamping molding part and provides mechanical oscillation to substrate；Gas-tight silo is provided with high pressure air rifle and inert gas air inlet.This method and device not only can be more thoroughly the residual powder got rid of on substrate, and deimpurity powder circulation will be sieved and utilized, and save material；Because whole removal process is carried out under inert gas shielding, it is also prevented from the oxidation of powder and makes moist, ensures that original quality of powder is constant.
Description
Technical field
The present invention relates to residual in the material increasing field of dusty material, more particularly to a kind of recovery metal increasing material manufacturing substrate
Stay the method and device of powder.
Background technology
Increasing material manufacturing is commonly called as 3D printing again, is that the method successively to be added up using material by CAD design data manufactures entity
The technology of part, (machining) technology is removed relative to traditional material, be a kind of manufacture of " from bottom to top " material addition
Method.Compared to traditional manufacturing technology, with that can be molded, complicated shape part, formed precision are high, save material etc. for increasing material manufacturing
Advantage.
The moulding material of increasing material manufacturing can be divided into dusty material, filamentary material and fluent material three according to the difference of form
Major class, wherein powdered molding material, which include polymer material and engineering, the dusty materials such as metal dust, ceramic powders and polyethylene, to be had
Beneficial to the precise forming of increasing material manufacturing, and material can recycle, and be widely used in selective laser fusing, selective laser
In the increasing material manufacturing method such as sintering, electron beam selective melting.
Selective laser is melted and electron beam selective melting these increases material manufacturing technologies use be all powder presetting system into
Type method, i.e., first powder is equably layered on shaping substrate in forming process, with complete one layer of laser or electron-beam melting it
Afterwards, one layer of powder is repaved, is successively added up, until part machines.After process finishing, part can be covered by powder, it is necessary to by zero
Powder around part is swept away with brush, and these unnecessary powder can also recycle.But for complex-shaped freely song
Surface parts, loose structure part and hollow structure part, in order to being smoothly molded, it is necessary to add many supports during processing.This
After a little part process finishings, many powder, and more difficult removal can be remained between feature bottom and support.
Remove at present this kind of substrate residual powder method be typically substrate is taken out, with hammer tap substrate side and
The back side, shake off powder；Or blown with high pressure air rifle against substrate surface, blow away residual powder.So remove residual powder
The shortcomings that following be present：First, pound with a hammer substrate or when blow substrate with compressed gas, and residual powder can be kicked up, and four
Place is dispersed, and environment is polluted, and is also easy to damage operating personnel；Second, such operating method is more difficult thoroughly clear
Except the residual powder of feature bottom, and the powder flown upward cannot reclaim, and waste material；3rd, it is this kind of for titanium alloy
Active metal powder, if exposure operates in atmosphere, powder can be aoxidized.
The content of the invention
The shortcomings that it is an object of the invention to overcome above-mentioned prior art and deficiency, there is provided a kind of simple and practical returns
Receive the method and device of residual powder on metal increasing material manufacturing substrate.Overcome forming part in the prior art and substrate gap it
Between, and residual powder inside the support section of forming part is difficult the technical problem taken out.
The present invention is achieved through the following technical solutions：
It is a kind of to reclaim the device of residual powder on metal increasing material manufacturing substrate, including gas-tight silo 1, be arranged on outside gas-tight silo 1
The pneumatic vibrator 6 in portion, the vibration hold assembly for being used to transmit vibration being arranged on the madial wall of gas-tight silo 1, vibrate clamping part
Part connects pneumatic vibrator 6, and vibration hold assembly is used to clamp the substrate 10 of molding part 11 and provide machinery to substrate 10 to shake
It is dynamic；
Side wall is provided with high pressure air rifle 3 and inert gas air inlet 4 above the internal vibration hold assembly of gas-tight silo 1, high
Compressed gas gun 3 and inert gas air inlet 4 connect the inert gas holding vessel 2 of outside respectively.
It is described vibration hold assembly include rotation connection bar 8, the substrate vibration tong 9 for clamping substrate 10, described turn
Dynamic connecting rod 8 is arranged in the side wall of gas-tight silo 1, and mechanical oscillation are provided for substrate vibration tong 9.
The bottom of the gas-tight silo 1 is provided with powder recovering device.
The powder recovering device includes the vibrated screen 15 of powder, the impurity recovery cylinder for reclaiming impurity 17 in powder
16th, the Powder Recovery cylinder 18 fallen is sieved by the vibrated screen 15 of powder for collecting.
The recovery port of the impurity recovery cylinder 16 is provided with a switch.
Oxygen content monitor 13 and dedusting exhaust outlet 14 are provided with the lower sides of the gas-tight silo 1.
The bottom of the gas-tight silo 1 is in funnel-shaped structure；The top of gas-tight silo 1 has the closure 1-1 of an activity；Sealing
The side wall in storehouse 1 is provided with a glove box entrance 5, and the pneumatic vibrator 6 has a personal-machine interactive operation screen 7.
The method for reclaiming residual powder on metal increasing material manufacturing substrate is as follows：
The first step：After increasing material manufacturing shaping terminates, substrate 10 is removed；Closure 1-1 is opened, substrate 10 is fixed on substrate
Seal cover board 1-1 is closed after on vibration tong 9, opens the valve of inert gas holding vessel 2, to gas-tight silo 1 inside be passed through inertia
Protective gas, observe the reading change of oxygen content monitor 13 in gas-tight silo 1；
If the powder of recovery is non-active metal powder, N2 is passed through as protective gas, if the powder of recovery is activity
Metal dust, then Ar is passed through as protective gas；
Second step：When oxygen content concentration is less than 0.8% in storehouse 1 to be sealed, pneumatic vibrator 6 is opened, passes through man-machine interaction
Operator control panel 7 adjusts the frequency of pneumatic vibrator 6, makes the vibration frequency of substrate 10 between 100HZ~150HZ, crosses powder vibration
The vibration frequency of sieves 15 is between 50HZ~100HZ；Making can be by the powder of the reusable edible of the vibrated screen 15 of powder
End is dropped into Powder Recovery cylinder 18；
3rd step：It is manually operated by gloves tank inlet 5, substrate vibration tong 9 is driven substrate 10 around rotation connection
Bar 8 rotates, and shakes off residual powder on substrate 10；By the manually operated high pressure air rifle 3 of gloves tank inlet 5, molding part 11 is directed at
Support section 12 between substrate 10, the residual powder that can not vibrate is blown away with high-pressure inert gas, then use high pressure gas
The powder that 3, rifle is attached on the inwall of gas-tight silo 1 is blown away；The residual powder shaken off and blown off falls in the vibrated screen 15 of powder
On, make to drop into Powder Recovery cylinder 18 by the powder of the reusable edible of the vibrated screen 15 of powder, powder can not be passed through
The impurity 17 of the vibrated screen 15 in end is stayed on the vibrated screen 15 of powder；
After powder vibration screening terminates, pneumatic vibrator 6 is closed, the switch of impurity recovery cylinder 16 is opened, with powder brush
The large granular impurity 17 on the vibrated surface of screen 15 of powder is swept into impurity recovery cylinder 16, takes out substrate 10, impurity is removed and returns
Cylinder 16 and Powder Recovery cylinder 18 are received, the powder 19 of recovery is poured into 3D printer, recycled；Remained on completing substrate
The recovery of powder.
The present invention is had the following advantages and effect relative to prior art：
The residual powder got rid of on substrate that not only can be more thoroughly of the invention, and deimpurity powder circulation profit will be sieved
With having saved material；Because whole removal process is carried out under inert gas shielding, be also prevented from powder oxidation and by
Tide, ensure that original quality of powder is constant.
Gas-tight silo side wall, which is provided with, passes through gloves tank inlet (glove box), can carry out human assistance operation by human hand, no
Only clean further powder more abundant, and prevent injury of the powder to operating personnel, and its pollution to environment.
Technical measure is simple and easy to do, both carries out pollution-free cleaning to the powder of residual, and it is collected, and
And the powder properties after collecting are constant.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of residual powder on present invention recovery metal increasing material manufacturing substrate.
Embodiment
The present invention is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figure 1.A kind of device for reclaiming residual powder on metal increasing material manufacturing substrate of the present invention, including gas-tight silo 1,
It is arranged on the pneumatic vibrator 6 outside gas-tight silo 1, the vibration clamping for being used to transmit vibration being arranged on the madial wall of gas-tight silo 1
Part, vibration hold assembly connection pneumatic vibrator 6, vibration hold assembly are used to clamp the substrate 10 of molding part 11 and to base
Plate 10 provides mechanical oscillation；
Side wall is provided with high pressure air rifle 3 and inert gas air inlet 4 above the internal vibration hold assembly of gas-tight silo 1, high
Compressed gas gun 3 and inert gas air inlet 4 connect the inert gas holding vessel 2 of outside respectively.
It is described vibration hold assembly include rotation connection bar 8, the substrate vibration tong 9 for clamping substrate 10, described turn
Dynamic connecting rod 8 is arranged in the side wall of gas-tight silo 1, and mechanical oscillation are provided for substrate vibration tong 9.
The bottom of the gas-tight silo 1 is provided with powder recovering device.
The powder recovering device includes the vibrated screen 15 of powder, the impurity recovery cylinder for reclaiming impurity 17 in powder
16th, the Powder Recovery cylinder 18 fallen is sieved by the vibrated screen 15 of powder for collecting.
Pneumatic vibrator 6 is the power source that the vibrated screen 15 of powder and substrate 10 vibrate.
Go out to set a switch in the recovery port of impurity recovery cylinder 16.
Oxygen content monitor 13 and dedusting exhaust outlet 14 are provided with the lower sides of the gas-tight silo 1.Dedusting exhaust outlet
14 be to ensure the circulation of air in gas-tight silo 1, while inert gas is passed through, inner air is arranged from the outlet
Go out, be also prevented from powder leakage.
The bottom of the gas-tight silo 1 is in funnel-shaped structure；The top of gas-tight silo 1 has the closure 1-1 of an activity；Sealing
The side wall in storehouse 1 is provided with a glove box entrance 5, is operated across plastic gloves, prevents powder from revealing, protects operator.
The pneumatic vibrator 6 has a personal-machine interactive operation screen 7.
The method for reclaiming residual powder on metal increasing material manufacturing substrate is as follows：
The first step：After increasing material manufacturing shaping terminates, substrate 10 is removed；Closure 1-1 is opened, substrate 10 is fixed on substrate
Seal cover board 1-1 is closed after on vibration tong 9, opens the valve of inert gas holding vessel 2, to gas-tight silo 1 inside be passed through inertia
Protective gas, observe the reading change of oxygen content monitor 13 in gas-tight silo 1；
If the powder of recovery is the inactive metal powder such as stainless steel, cochrome or ceramics, N2 is passed through as protection
Gas, if the powder of recovery is titanium alloy or aluminium alloy isoreactivity metal dust, Ar is passed through as protective gas；
Second step：When oxygen content concentration is less than 0.8% in storehouse 1 to be sealed, pneumatic vibrator 6 is opened, passes through man-machine interaction
Operator control panel 7 adjusts the frequency of pneumatic vibrator 6, makes the vibration frequency of substrate 10 between 100HZ~150HZ, crosses powder vibration
The vibration frequency of sieves 15 is between 50HZ~100HZ；Making can be by the powder of the reusable edible of the vibrated screen 15 of powder
Last (little particle) is dropped into Powder Recovery cylinder 18；
3rd step：It is manually operated by gloves tank inlet 5, substrate vibration tong 9 is driven substrate 10 around rotation connection
Bar 8 rotates, and shakes off residual powder on substrate 10；By the manually operated high pressure air rifle 3 of gloves tank inlet 5, molding part 11 is directed at
Support section 12 between substrate 10, the residual powder that can not vibrate is blown away with high-pressure inert gas, then use high pressure gas
The powder that 3, rifle is attached on the inwall of gas-tight silo 1 is blown away；The residual powder shaken off and blown off falls in the vibrated screen 15 of powder
On, make to drop into Powder Recovery cylinder 18 by the powder (little particle) of the reusable edible of the vibrated screen 15 of powder, nothing
Method is stayed on the vibrated screen 15 of powder by the impurity 17 of the vibrated screen 15 of powder；
After powder vibration screening terminates, pneumatic vibrator 6 is closed, the switch of impurity recovery cylinder 16 is opened, with powder brush
The large granular impurity 17 (bulky grain) on the vibrated surface of screen 15 of powder is swept into impurity recovery cylinder 16, substrate 10 is taken out, takes
Lower impurity recovery cylinder 16 and Powder Recovery cylinder 18, the powder 19 of recovery is poured into 3D printer, recycled；Complete into
Between type part 11 and the gap of substrate 10, and residual powder inside the support section 12 of forming part 11 cleaning with returning
Receive.
As described above, the present invention can be better realized.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any Spirit Essences without departing from the present invention
With made under principle change, modification, replacement, combine, simplification, should be equivalent substitute mode, be included in the present invention's
Within protection domain.
Claims (6)
1. remained in a kind of method for reclaiming residual powder on metal increasing material manufacturing substrate, including recovery metal increasing material manufacturing substrate
The device of powder, the device include gas-tight silo (1), are arranged on the outside pneumatic vibrator (6) of gas-tight silo (1), are arranged on sealing
The vibration hold assembly for being used to transmit vibration on storehouse (1) madial wall, vibration hold assembly connection pneumatic vibrator (6), vibration
Hold assembly is used for the substrate (10) for clamping molding part (11) and provides mechanical oscillation to substrate (10)；
Side wall is provided with high pressure air rifle (3) and inert gas air inlet (4) above gas-tight silo (1) the internal vibration hold assembly,
High pressure air rifle (3) and inert gas air inlet (4) connect the inert gas holding vessel (2) of outside respectively；
The vibration hold assembly includes rotation connection bar (8), the substrate vibration tong (9) for clamping substrate (10), described
Rotation connection bar (8) is arranged in the side wall of gas-tight silo (1), and mechanical oscillation are provided for substrate vibration tong (9)；
The powder recovering device includes the vibrated screen of powder (15), the impurity recovery cylinder for reclaiming impurity in powder (17)
(16), for collecting the Powder Recovery cylinder (18) fallen by the vibrated screen of powder (15) sieve；
Oxygen content monitor (13) and dedusting exhaust outlet (14) are provided with the lower sides of the gas-tight silo (1)；
The bottom of the gas-tight silo (1) is in funnel-shaped structure；The top of the gas-tight silo (1) has the closure (1- of an activity
1)；
Characterized in that, reclaiming the method for residual powder on metal increasing material manufacturing substrate, it is achieved by the steps of：
The first step：After increasing material manufacturing shaping terminates, substrate (10) is removed；Closure (1-1) is opened, substrate (10) is fixed on base
Seal cover board 1-1 is closed after on panel vibration fixture (9), opens the valve of inert gas holding vessel (2), it is internal to gas-tight silo (1)
It is passed through inert protective gas, the reading change of observation gas-tight silo (1) interior oxygen content monitor (13)；If the powder of recovery is non-live
Property metal dust, then be passed through N2 as protective gas, if the powder of recovery is active metal powder, be passed through Ar as protection gas
Body；
Second step：When the interior oxygen content concentration of storehouse (1) to be sealed is less than 0.8%, pneumatic vibrator (6) is opened, passes through man-machine interaction
The frequency of operator control panel (7) regulation pneumatic vibrator (6), makes the vibration frequency of substrate (10) make between 100HZ~150HZ
The vibration frequency of the vibrated screen of powder (15) is between 50HZ~100HZ；It can be fallen by the powder of the vibrated screen 15 of powder
Enter into Powder Recovery cylinder 18.
2. the method for residual powder on metal increasing material manufacturing substrate is reclaimed according to claim 1, it is characterised in that also include
One hand assisted step：
It is manually operated by gloves tank inlet (5), substrate vibration tong (9) is driven substrate (10) around rotation connection bar (8)
Rotate, shake off residual powder on substrate (10)；By gloves tank inlet (5) manually operated high pressure air rifle (3), molding part is directed at
(11) support section (12) between substrate (10), blows away the residual powder that can not vibrate with inert gas, then with height
Compressed gas gun (3) blows away the powder being attached on gas-tight silo (1) inwall；Shake off and the residual powder blown off fall it is vibrated in powder
On screen (15), make Powder Recovery cylinder (18) can be dropped into by the powder of the reusable edible of the vibrated screen of powder (15)
In, it can not be stayed in by the impurity (17) of the vibrated screen of powder (15) on the vibrated screen of powder (15)；
After powder vibration screening terminates, pneumatic vibrator (6) is closed, the switch of impurity recovery cylinder (16) is opened, with powder brush
The large granular impurity (17) on the vibrated screen of powder (15) surface is swept into impurity recovery cylinder (16), substrate (10) is taken out, takes
Lower impurity recovery cylinder (16) and Powder Recovery cylinder (18), the powder (19) of recovery is poured into 3D printer, recycled；
Complete the recovery of residual powder.
3. the method for residual powder on metal increasing material manufacturing substrate is reclaimed according to claim 2, it is characterised in that：It is described close
The bottom of envelope storehouse (1) is provided with powder recovering device.
4. the method for residual powder on metal increasing material manufacturing substrate is reclaimed according to claim 2, it is characterised in that：It is described miscellaneous
The recovery port of matter recovery cylinder (16) is provided with a switch.
5. the method for residual powder on metal increasing material manufacturing substrate is reclaimed according to claim 2, it is characterised in that：It is described close
The bottom for sealing storehouse (1) is in funnel-shaped structure；The top of the gas-tight silo (1) has the closure (1-1) of an activity.
6. the method for residual powder on metal increasing material manufacturing substrate is reclaimed according to claim 2, it is characterised in that：It is described close
The side wall of envelope storehouse (1) is provided with a glove box entrance (5), and the pneumatic vibrator (6) has a personal-machine interactive operation screen
(7)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633551.6A CN105170988B (en) | 2015-09-28 | 2015-09-28 | A kind of method and device for reclaiming residual powder on metal increasing material manufacturing substrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633551.6A CN105170988B (en) | 2015-09-28 | 2015-09-28 | A kind of method and device for reclaiming residual powder on metal increasing material manufacturing substrate |
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| CN105170988A CN105170988A (en) | 2015-12-23 |
| CN105170988B true CN105170988B (en) | 2018-01-02 |
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