CN105127415A - Metal 3D printing and fast prototyping device - Google Patents

Metal 3D printing and fast prototyping device Download PDF

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Publication number
CN105127415A
CN105127415A CN201510679764.2A CN201510679764A CN105127415A CN 105127415 A CN105127415 A CN 105127415A CN 201510679764 A CN201510679764 A CN 201510679764A CN 105127415 A CN105127415 A CN 105127415A
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CN
China
Prior art keywords
metal
gas
shower nozzle
unit
feed
Prior art date
Application number
CN201510679764.2A
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Chinese (zh)
Inventor
杨卫民
迟百宏
马昊鹏
焦志伟
谭晶
谢鹏程
阎华�
丁玉梅
Original Assignee
北京化工大学
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Application filed by 北京化工大学 filed Critical 北京化工大学
Priority to CN201510679764.2A priority Critical patent/CN105127415A/en
Publication of CN105127415A publication Critical patent/CN105127415A/en

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Abstract

The invention discloses a metal 3D printing and fast prototyping device which mainly comprises a prototyping unit, a feeding unit, a gas protection device and a tail gas recycling unit, wherein the prototyping unit comprises a three-dimensional moving device, a sprayer, an electric welding machine, an electric wire and a metal prototyping platform; the feeding unit comprises a metal welding material powder cavity, a feeding air pump and a polytetrafluoroethylene feeding pipe; the gas protection device comprises a CO2 tank, a gas guiding pipe and a gas supply pump; the gas supply pump conveys CO2 into a CO2 protection gas flow channel of the sprayer from the gas guiding pipe; the tail gas recycling unit comprises a closed machine body, an air filtering net, a gas collection pump and a gas collection pipeline; and the three-dimensional moving device, the sprayer and the metal prototyping platform are positioned in the closed machine body. According to the metal 3D printing and fast prototyping device disclosed by the invention, metal powder is melt, cured, prototyped and stacked to form a three-dimensional entity model according to a specified route by adopting a surfacing technology, so that the manufacture cost of a metal 3D printer is reduced, and a metal 3C printing technology can be further favorably pushed into a practical application stage.

Description

A kind of metal 3D prints rapid forming equipment
Technical field
The present invention relates to a kind of rapid molding device, especially relate to a kind of metal 3D and print rapid forming equipment.
Background technology
Rapid shaping technique (be also called RP technique, RapidPrototypingManufac-turing, be called for short RPM), prints also referred to as 3D.This technology, according to the three-dimensional modeling data of object, manufactures entity by former in the mode successively superposed.This technology can overcome the special construction obstacle that current traditional machining cannot realize.The simplification that can realize any complex components is produced.Existing 3D printing technique is mainly divided into, fused glass pellet (FDM), selective laser sintering (SLS), stereolithography (SLA), digital light process (DLP) etc.
At present, metal 3D prints rapid shaping technique majority is Selective Laser Sintering, i.e. SLS.This technology is used extensively in metal rapid shaping field, but its equipment must adopt high power laser transmitter, feed mode in addition in this technology is extremely complicated, these two aspects reason causes being that the metal rapid forming equipment cost of core remains high with Selective Laser Sintering, and is difficult to this technology to be carried out to practical application.Therefore for above-mentioned deficiency, apparatus of the present invention can be avoided using the laser beam emitting device of high cost and complicated feeding device, reduce equipment making cost, are conducive to advancing Rapid metallic to enter practical stage further.
Summary of the invention
For above-mentioned shortcoming, design a kind of processing unit (plant), shower nozzle is arranged on three-dimensional motion device, nozzle place arranges annular jet, immediately below printer head ejection metal solder powder to electric welding head, the energising of electric welding head forms both positive and negative polarity with metallic print substrate, produces electric spark between the two and to be melted rapidly by metal dust and rapid cooling curing is shaping.Shower nozzle like this according to the rules route processes the formation 3D solid that is layering.This kind of method is utilized to avoid using laser generator and complicated feeding device can realize the rapid shaping of metal material.
The present invention be utilize metal solder powder as consumptive material, take technique for overlaying as the metal 3D printing equipment of core, working method is: by metal solder powder being sprayed from nozzle, electric welding head in nozzle place produces rapidly electric spark melting solder and according to the desired trajectory of the every one deck of part, carries out that metal bath is stacking and cooling curing is shaping rapidly with certain speed.Often stacking complete one deck after, above this layer, continue above-mentioned work, so move in circles and finally realize the stacking shaping of metal parts.
Technical scheme of the present invention is: a kind of metal 3D prints rapid molding device, is made up of forming unit, feed unit, gas shield device and tail gas recycle unit; Wherein forming unit comprises three-dimensional motion device, shower nozzle, electric welding machine, electric wire and metal forming platform, and wherein shower nozzle front end is electric welding head, in shower nozzle, be provided with CO 2the passage of shielding gas flow road and metal solder powder, the outlet of the passage of metal solder powder is metal solder powder discharging opening, CO 2shielding gas flow road and metal solder powder discharging opening are the circular ring path around electric welding head; Wherein feed unit comprises metal solder powder chamber, feed air pump, polytetrafluoroethylene (PTFE) feed pipe, and metal solder powder is input to the passage of the metal solder powder of shower nozzle by polytetrafluoroethylene (PTFE) feed pipe through feed air pump; Wherein gas shield device comprises CO 2gas tank, wireway, air feed air pump, air feed air pump is by CO 2the CO of shower nozzle is input to by wireway 2shielding gas flow road; Tail gas recycle unit comprises airtight body, airstrainer, gas collection air pump and collecting pipe, and three-dimensional motion device, shower nozzle and metal forming platform are positioned at airtight body.
The method of a kind of metal rapid shaping of the present invention is: utilize air pump to spray metal solder powder from printer head, during powder ejection, the energising of electric welding head forms both positive and negative polarity with the metallic print substrate on metal forming platform, and both directly produce electric spark and the metal solder powder dropped on immediately below shower nozzle to be melted rapidly and rapid cooling curing is shaping.This kind of method is utilized to avoid using laser generator and complicated feeding device can realize the rapid shaping of metal material.
The forming unit that a kind of metal 3D of the present invention prints rapid forming equipment is three-dimensional motion device, shower nozzle, electric welding machine, electric wire, electric welding head and metal forming platform.Shower nozzle is fixed on three-dimensional motion device, by the Slice Software on computer, pre-shaped articles is converted to two-dimentional shower nozzle movement locus from threedimensional model, is arranged on the orbiting motion that the shower nozzle on three-dimensional motion device generates according to Slice Software.Nozzle structure is divided into three layers from inside to outside, and skin is CO 2gas shield runner, intermediate layer is metal solder powder feed path, and center is electric welding head.During work, metallic intermediate layer powder is ejected into immediately below center electric welding head, and electric welding machine both positive and negative polarity connects electric welding head and metal forming platform respectively.Electric welding machine energising makes soldering tip and metal forming platform become positive and negative polarities, and short circuit between the two generates electric spark, and after the powder of rapid deposite metal, cooling curing is shaping at once.Outer ejection CO 2gas shield makes welding heat concentrate, and improves speed of welding.
The feed unit that a kind of metal 3D of the present invention prints rapid forming equipment comprises metal solder powder chamber, feed air pump, polytetrafluoroethylene (PTFE) feed pipe.Metal solder powder is placed in metal solder powder chamber as consumptive material, is sent in shower nozzle intermediate layer by metal dust by polytetrafluoroethylene (PTFE) feed pipe with feed air pump.
The gas shield unit that a kind of metal 3D of the present invention prints rapid forming equipment comprises CO 2gas tank, wireway, air pump.CO 2gas tank, air pump utilize wireway to be connected with shower nozzle skin.Air pump is by CO 2gas is derived and is transported to the ejection of shower nozzle skin from gas tank.Electric arc heat under the compression of protective gas is concentrated, and speed of welding is very fast, and molten bath is little, and heat affected area is narrow.
The tail gas recycle unit that a kind of metal 3D of the present invention prints rapid forming equipment comprises closed case, airstrainer, gas collection air pump and collecting pipe.Can produce in metal solder powder welding process in a large number with smog and the toxic gas of dust, whole body is installed in closed case, avoid toxic gas to spill in surrounding environment, affect staff healthy.Utilize gas collection air pump to reclaim toxic gas by collecting pipe, make it by airstrainer degraded noxious material and particle in filter smoke.
A kind of metal 3D of the present invention prints rapid forming equipment and uses technique for overlaying electric welding machine by metal dust circuit fusing curing molding is stacking becomes three-dimensional entity model according to the rules, the invention is intended to avoid using the power laser generator of conventional metals rapid shaping technique necessity and the feeding device of complexity, greatly reduce the cost of manufacture of metal 3D printer, be conducive to pushing metal 3D printing technique to practical stage further.
Accompanying drawing explanation
Fig. 1 is the plane that a kind of metal 3D of the present invention prints rapid forming equipment.
Fig. 2 is the nozzle structure schematic diagram that a kind of metal 3D of the present invention prints rapid forming equipment.
In figure: 1-metal solder powder chamber; 2-polytetrafluoroethylene (PTFE) feed pipe; 3-feed air pump; 4-shower nozzle; 5-electric welding head; 6-three-dimensional motion device; 7-metal forming platform; 8-electric wire; 9-electric welding machine; 10-collecting pipe; 11-gas collection air pump; 12-airstrainer; 13-closed case; 14-CO 2gas tank; 15-air feed air pump; 16-wireway; 17-CO 2shielding gas flow road; 18-metal solder powder discharging opening.
Detailed description of the invention
The invention provides a kind of metal 3D and print rapid forming equipment, as shown in Figure 1, be made up of forming unit, feed unit, gas shield unit and tail gas recycle unit.Wherein forming unit comprises three-dimensional motion device 6, shower nozzle 4, electric welding machine 9, electric wire 8, electric welding 5 and metal forming platform 7, and wherein shower nozzle 4 front end is electric welding 5, in shower nozzle 4, be provided with CO 2the passage of shielding gas flow road 17 and metal solder powder, the outlet of the passage of metal solder powder is metal solder powder discharging opening 18, CO 2shielding gas flow road 17 and metal solder powder discharging opening 18 are the circular ring path around electric welding 5; Wherein feed unit comprises metal solder powder chamber 1, feed air pump 3, polytetrafluoroethylene (PTFE) feed pipe 2; Wherein gas shield unit comprises CO 2gas tank 14, wireway 16 and air feed air pump 15; Tail gas recycle unit comprises closed case 13, airstrainer 12, gas collection pump 11 and collecting pipe 10.
The course of work that a kind of metal of the present invention 3D prints rapid forming equipment is, by the Slice Software installed on computers, threedimensional model is converted to two-dimentional shower nozzle movement locus.Shower nozzle 4 is fixed on three-dimensional motion device 6, the orbiting motion that shower nozzle generates according to Slice Software.Shower nozzle 4 structure is divided into three layers from inside to outside, and as shown in Figure 2, skin is CO 2gas shield runner 17, intermediate layer is metal solder powder discharging opening 18, and center is electric welding 5.During work, metal solder powder feed air pump 3 sends into shower nozzle intermediate layer by polytetrafluoroethylene (PTFE) feed pipe 2.Metallic intermediate layer powder is ejected into immediately below center electric welding 5, and electric welding machine 9 both positive and negative polarity connects electric welding 5 and metal forming platform 7 respectively by electric wire 8.Electric welding machine 9 energising makes soldering tip 5 and metal forming platform 7 become positive and negative polarities, and short circuit therebetween generates electric spark, and after the powder of rapid deposite metal, cooling curing is shaping at once.CO 2gas tank 14, air pump 15 and shower nozzle skin utilize wireway 16 to be connected.Air pump 15 is by CO 2gas is derived and is transported to the ejection of shower nozzle skin from gas tank 14.Body is installed in closed case 13, utilizes gas collection pump 11 to reclaim toxic gas by collecting pipe 10, makes it be degraded noxious material particle in filter smoke by airstrainer 12.

Claims (3)

1. metal 3D prints a rapid forming equipment, it is characterized in that: be made up of forming unit, feed unit, gas shield device and tail gas recycle unit; Described forming unit comprises three-dimensional motion device, shower nozzle, electric welding machine, electric wire and metal forming platform, and shower nozzle front end is electric welding head, in shower nozzle, be provided with CO 2the passage of shielding gas flow road and metal solder powder; Electric welding machine both positive and negative polarity connects electric welding head and metal forming platform respectively; Described feed unit is metal solder powder chamber, feed air pump and polytetrafluoroethylene (PTFE) feed pipe, and metal solder powder is input to the passage of the metal solder powder of shower nozzle by polytetrafluoroethylene (PTFE) feed pipe through feed air pump; Described gas shield device comprises CO 2gas tank, wireway and air feed air pump, air feed air pump is by CO 2the CO of shower nozzle is input to by wireway 2shielding gas flow road; Tail gas recycle unit comprises airtight body, airstrainer, gas collection air pump and collecting pipe, and three-dimensional motion device, shower nozzle and metal forming platform are positioned at airtight body.
2. a kind of metal 3D according to claim 1 prints rapid forming equipment, it is characterized in that: shower nozzle is fixed on three-dimensional motion device, by the Slice Software on computer, pre-shaped articles is converted to two-dimentional shower nozzle movement locus from threedimensional model, is arranged on the orbiting motion that the shower nozzle on three-dimensional motion device generates according to Slice Software.
3. a kind of metal 3D according to claim 1 prints rapid forming equipment, and it is characterized in that: nozzle structure is divided into three layers from inside to outside, skin is CO 2gas shield runner, intermediate layer is metal solder powder feed path, and center is electric welding head.
CN201510679764.2A 2015-10-19 2015-10-19 Metal 3D printing and fast prototyping device CN105127415A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106431788A (en) * 2016-10-27 2017-02-22 西北工业大学 Micro grain moulding device based on 3D printing and method thereof
CN106676597A (en) * 2017-03-20 2017-05-17 北京化工大学 3D printing additive manufacturing finish machining device and machining method thereof
CN106881509A (en) * 2017-03-20 2017-06-23 南昌大学 A kind of 3D printing method for increasing material and spark-erosion sinking based on ultra-sonic welded
CN107182172A (en) * 2017-07-10 2017-09-19 成都联创鸿发科技有限公司 The process of 3D printing soldering paste body on printed circuit board
CN107788054A (en) * 2017-12-06 2018-03-13 长沙远达华信息科技有限公司 Food 3D printing rapid forming equipment
CN110029248A (en) * 2019-04-17 2019-07-19 广东科学技术职业学院 A kind of metal lotion of 3D printing and preparation method thereof
CN110605402A (en) * 2019-09-18 2019-12-24 河南科技大学 3D printing device and method based on centrifugal atomization

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202786430U (en) * 2012-08-16 2013-03-13 张家港市和昊激光科技有限公司 Coaxial nozzle for laser cladding
CN103691946A (en) * 2013-12-10 2014-04-02 沈阳市昂扬科技有限公司 Metal 3D (Three Dimensional) printer
CN103706791A (en) * 2013-12-10 2014-04-09 鞍山煜宸科技有限公司 Control method for improving laser 3D (three-dimensional) printing and surface-treatment material utilization rate
CN203817588U (en) * 2014-05-15 2014-09-10 东莞市亚美精密机械配件有限公司 Metal 3D printer based on electric-arc welding
CN104816478A (en) * 2015-05-12 2015-08-05 北京化工大学 3D printing device and 3D printing method by utilizing supercritical carbon dioxide as solvent
CN104923785A (en) * 2015-06-05 2015-09-23 南京工程学院 Electric arc 3D printing device and method for magnesium alloy tubular structural components
KR20150116951A (en) * 2014-04-08 2015-10-19 한국프린티드일렉트로닉스연구조합 Three-dimensional printer using gas metal arc welding

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202786430U (en) * 2012-08-16 2013-03-13 张家港市和昊激光科技有限公司 Coaxial nozzle for laser cladding
CN103691946A (en) * 2013-12-10 2014-04-02 沈阳市昂扬科技有限公司 Metal 3D (Three Dimensional) printer
CN103706791A (en) * 2013-12-10 2014-04-09 鞍山煜宸科技有限公司 Control method for improving laser 3D (three-dimensional) printing and surface-treatment material utilization rate
KR20150116951A (en) * 2014-04-08 2015-10-19 한국프린티드일렉트로닉스연구조합 Three-dimensional printer using gas metal arc welding
CN203817588U (en) * 2014-05-15 2014-09-10 东莞市亚美精密机械配件有限公司 Metal 3D printer based on electric-arc welding
CN104816478A (en) * 2015-05-12 2015-08-05 北京化工大学 3D printing device and 3D printing method by utilizing supercritical carbon dioxide as solvent
CN104923785A (en) * 2015-06-05 2015-09-23 南京工程学院 Electric arc 3D printing device and method for magnesium alloy tubular structural components

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106431788A (en) * 2016-10-27 2017-02-22 西北工业大学 Micro grain moulding device based on 3D printing and method thereof
CN106431788B (en) * 2016-10-27 2018-08-21 西北工业大学 A kind of micro- powder column molding machine and its method based on 3D printing
CN106676597A (en) * 2017-03-20 2017-05-17 北京化工大学 3D printing additive manufacturing finish machining device and machining method thereof
CN106881509A (en) * 2017-03-20 2017-06-23 南昌大学 A kind of 3D printing method for increasing material and spark-erosion sinking based on ultra-sonic welded
CN106676597B (en) * 2017-03-20 2018-06-26 北京化工大学 3D printing increasing material manufacturing finish machining equipment and its processing method
CN107182172A (en) * 2017-07-10 2017-09-19 成都联创鸿发科技有限公司 The process of 3D printing soldering paste body on printed circuit board
CN107182172B (en) * 2017-07-10 2019-09-27 成都联创鸿发科技有限公司 The process of 3D printing soldering paste body on printed circuit board
CN107788054A (en) * 2017-12-06 2018-03-13 长沙远达华信息科技有限公司 Food 3D printing rapid forming equipment
CN110029248A (en) * 2019-04-17 2019-07-19 广东科学技术职业学院 A kind of metal lotion of 3D printing and preparation method thereof
CN110605402A (en) * 2019-09-18 2019-12-24 河南科技大学 3D printing device and method based on centrifugal atomization
WO2021052069A1 (en) * 2019-09-18 2021-03-25 河南科技大学 3d printing device and method based on centrifugal atomization

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Application publication date: 20151209