CN114951704B - Substrate for 3D printer and preparation method thereof - Google Patents

Substrate for 3D printer and preparation method thereof Download PDF

Info

Publication number
CN114951704B
CN114951704B CN202210370034.4A CN202210370034A CN114951704B CN 114951704 B CN114951704 B CN 114951704B CN 202210370034 A CN202210370034 A CN 202210370034A CN 114951704 B CN114951704 B CN 114951704B
Authority
CN
China
Prior art keywords
substrate
clamping
control
base
support plate
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.)
Active
Application number
CN202210370034.4A
Other languages
Chinese (zh)
Other versions
CN114951704A (en
Inventor
王林
鲁晟
袁加蒙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Chenglian Laser Technology Co Ltd
Original Assignee
Nanjing Chenglian Laser Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Chenglian Laser Technology Co Ltd filed Critical Nanjing Chenglian Laser Technology Co Ltd
Priority to CN202210370034.4A priority Critical patent/CN114951704B/en
Publication of CN114951704A publication Critical patent/CN114951704A/en
Application granted granted Critical
Publication of CN114951704B publication Critical patent/CN114951704B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/245—Platforms or substrates
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention relates to a substrate for a 3D printer and a preparation method thereof, belonging to the technical field of substrates, and comprising a base supporting plate, and the substrate is characterized in that two sides of the base supporting plate are respectively provided with two clamping grooves, the top of the base supporting plate is fixedly connected with an alloy layer, the alloy layer is made of titanium alloy, the components of the titanium alloy are 0.20-0.25wt% of iron (Fe), 0.15-0.20wt% of carbon (C), 0.02-0.04 wt% of nitrogen (N), 0-0.015 wt% of hydrogen (H), 0.06-0.18wt% of oxygen (O), 6.5-7.8wt% of aluminum (Al), 3.6-4.4wt% of vanadium (V), and the balance of titanium (Ti). The invention solves the problems that the existing titanium alloy substrate is made of full titanium alloy, the cost is higher, and the clamping and mounting are very inconvenient.

Description

Substrate for 3D printer and preparation method thereof
Technical field:
the invention belongs to the technical field of substrates, and particularly relates to a substrate for a 3D printer and a preparation method thereof.
The background technology is as follows:
3D printing (3 DP), a type of rapid prototyping technology, also known as additive manufacturing, is a technology for constructing objects by means of layer-by-layer printing using bondable materials such as powdered metals or plastics on the basis of digital model files, 3D printing is usually implemented using digital technology material printers, often used in the fields of mould manufacturing, industrial design, etc. for manufacturing models, and later gradually used for direct manufacturing of some products, there have been parts printed using this technology, which is applied in the fields of jewelry, footwear, industrial design, construction, engineering and construction (AEC), automobiles, aerospace, dental and medical industries, education, geographical information systems, civil engineering, firearms, and others, and 3D printing has many different technologies, which are different in the way of usable materials and in the way of constructing components in different layers, and 3D printing common materials including nylon glass fiber, durable nylon materials, gypsum materials, aluminum materials, titanium alloys, stainless steel, silver plating, gold plating, rubber materials.
The existing titanium alloy substrate is made of all-titanium alloy, has high cost and is very inconvenient to clamp and install, and therefore the substrate for the 3D printer and the preparation method of the substrate are provided.
The invention comprises the following steps:
the invention provides a substrate for a 3D printer and a preparation method thereof, and aims to solve the problems that the existing titanium alloy substrate is made of full titanium alloy, the cost is high, and clamping and mounting are very inconvenient.
The invention provides a substrate for a 3D printer and a preparation method thereof, the substrate comprises a base support plate, and is characterized in that two clamping grooves are respectively arranged on two sides of the base support plate, an alloy layer is fixedly connected to the top of the base support plate, and the alloy layer is made of titanium alloy;
the titanium alloy comprises 0.20-0.25 wt% of iron (Fe), 0.15-0.20 wt% of carbon (C), 0.02-0.04 wt% of nitrogen (N), 0-0.015 wt% of hydrogen (H), 0.06-0.18 wt% of oxygen (O), 6.5-7.8 wt% of aluminum (Al), 3.6-4.4 wt% of vanadium (V) and the balance of titanium (Ti).
Further, a plurality of weight reduction grooves are uniformly formed in the bottom of the base supporting plate.
By adopting the scheme, the weight reducing groove reduces the weight of the base supporting plate.
Further, the base support plate is made of Q235.
By adopting the scheme, the Q235 has better comprehensive performance, better cooperation of strength, plasticity, welding and other performances, and the application is the most extensive.
Further, the strength sigma b of the base support plate is 905-1150 MPa, the residual elongation stress sigma r0.2 is 825-920 MPa, the elongation delta 5 is 10-23%, the area shrinkage psi is 25-38%, and the density g is 4.6-5.2 g/cm 3 。
Further, the thickness of the alloy layer is 2-5 mm.
By adopting the scheme, the alloy layer is used as a base for 3D printing.
Further, the cross section shape of the base supporting plate is a chamfer rectangle or a round shape, and the bottom of the base supporting plate is movably connected with a fixing mechanism.
By adopting the scheme, the cross section shape of the base supporting plate adapts to different working conditions.
Further, an alloy layer blank is manufactured;
using a high frequency induction heater to heat pure titanium metal to a fully molten state in stages:
step one: screening titanium metal powder;
step two: introducing high-purity argon or helium and argon for combined protection, and then preheating titanium metal powder by using a high-frequency induction heater, heating to 320+/-5 ℃ to remove water in the components;
then maintaining the temperature at 320+/-5 ℃ for 2-3 hours, and removing the moisture in the components;
step three: adding the rest components according to the mass percentage, and fully mixing the titanium metal powder with the rest components to obtain mixed powder;
step four: heating the mixed powder in stages under vacuum by using a high-frequency induction heater;
the mixed powder is initially heated to 610+/-5 ℃ to maintain the temperature for 4.5 to 5.5 hours;
the second stage is continuously heated to 965+/-5 ℃ to maintain the temperature and preserve the temperature for 0.7 to 1.3 hours;
the third stage is to continue heating to 1245+/-5 ℃ for refining, and stopping heating after refining for 50-80 min;
manufacturing a plate blank:
step five: gradually cooling to 935+/-5 ℃, forging into a plate blank, annealing, and heating to 650+/-5 ℃ for 30-60 min;
step six: cutting the slab into a raw slab of an alloy layer;
step seven: using a machine tool to manufacture a Q235 plate into a base support plate blank with a cylindrical or cuboid shape, arranging uniformly distributed weight reduction grooves on one side of the base support plate, and arranging two clamping grooves on two vertical side surfaces of the base support plate respectively;
step eight: polishing the surface of the raw blank of the base support plate to be smooth, deburring, removing surface oxide skin, polishing the surface of the raw blank of the alloy layer to be smooth, deburring;
step nine: matching and stacking the polished base support plate blank and the polished alloy layer blank, and then welding in an argon environment to obtain a substrate rough substrate finished product;
step ten: chamfering the rectangular rough substrate finished product by using a lathe, polishing the substrate rough substrate finished product by using a grinder, and finally obtaining the substrate finished product.
By adopting the above-described scheme, the substrate for a 3D printer is manufactured through the above steps.
Further, the fixing mechanism is used for stably and rapidly clamping the substrate;
a securing mechanism comprising: control knob, control lead screw, fixed slot, fixed column, grip slipper, connecting axle, control slide bar, centre gripping base, control chamber, control nut, slider, spacing groove, sliding column, centre gripping apron, one side of centre gripping base is provided with the centre gripping apron, the control chamber has been seted up to the inside of centre gripping base, four fixed slots have evenly been seted up at the top of centre gripping base, the inboard of centre gripping base evenly is provided with two control lead screws, one of them control lead screw's one end is fixed and is provided with control knob, two the equal outside of control knob one end is provided with drive bevel gear, the inboard swing joint of base backup pad one end has the connecting axle, the both ends of connecting axle are provided with a drive bevel gear respectively, drive bevel gear's outside and the outside meshing of the drive bevel gear that is close to, every control lead screw's outside threaded connection has two control nut, every two control nut are a set of group, two control nut sets up respectively in the same one end in two control lead screw outsides, one side of control nut is provided with control slide bar, two control nut's one side is fixed connection in the same slide bar, one side of sliding column, the sliding column is provided with the outside of slide bar, one side.
Four limit grooves are formed in the top of the clamping cover plate, the inner walls of the limit grooves are in sliding connection with the outer sides of the sliding blocks, the outer sides of the clamping cover plate are movably connected with the bottom of the base support plate, and the fixing mechanism is used for clamping and fixing the base plate.
By adopting the scheme, the fixing mechanism is used for clamping and fixing the substrate.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial technical effects:
according to the invention, the weight of the base support plate is reduced on the premise of ensuring the structural strength of the substrate through the use of the weight reduction groove, the rectangular or circular substrate is clamped and fixed conveniently through the use of the clamping groove, and the manufacturing cost of the substrate is reduced on the premise of ensuring the structural strength and the service performance of the substrate through the use of the preparation method of the substrate.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Description of the drawings:
the accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic cross-sectional front view of a substrate in the shape of a chamfered rectangle according to the present invention;
FIG. 2 is a schematic cross-sectional front view of a circular shaped substrate according to the present invention;
FIG. 3 is a schematic side cross-sectional view of the present invention;
FIG. 4 is a schematic view of the microstructure of the base support plate of the present invention;
FIG. 5 is a schematic diagram of the structure of the position relationship between the fixing mechanism and the substrate according to the present invention;
FIG. 6 is a schematic diagram of the front structure of the fixing mechanism of the present invention;
FIG. 7 is a schematic view of a part of the enlarged structure of the portion A of FIG. 5 according to the present invention;
fig. 8 is a schematic view of a part of the enlarged structure of the portion B in fig. 6 according to the present invention.
Reference numerals: 1. a base support plate; 2. a clamping groove; 3. an alloy layer; 4. a weight reduction groove; 5. A control knob; 6. a control screw rod; 7. a fixing groove; 8. fixing the column; 9. a clamping seat; 10. A linkage shaft; 11. a control slide bar; 12. clamping a base; 13. a control chamber; 14. a control nut; 15. a slide block; 16. a limit groove; 17. a sliding column; 18. the cover plate is clamped.
The specific embodiment is as follows:
in order to make the objects, technical solutions and advantages of the technical solutions of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the invention provides a substrate for a 3D printer and a preparation method thereof, comprising a base support plate 1, wherein two clamping grooves 2 are respectively arranged on two sides of the base support plate 1, an alloy layer 3 is fixedly connected to the top of the base support plate 1, and the alloy layer 3 is made of titanium alloy;
the titanium alloy comprises 0.20-0.25wt% of iron (Fe), 0.15-0.20wt% of carbon (C), 0.02-0.04 wt% of nitrogen (N), 0-0.015 wt% of hydrogen (H), 0.06-0.18wt% of oxygen (O), 6.5-7.8wt% of aluminum (Al), 3.6-4.4wt% of vanadium (V) and the balance of titanium (Ti).
A plurality of weight reduction grooves 4 are uniformly formed in the bottom of the base support plate 1, the alloy layer 3 and the base support plate 1 are connected in a welding mode, and the weight reduction grooves 4 reduce the weight of the base support plate 1;
the base support plate 1 is made of Q235, the comprehensive performance of the Q235 is good, the performances such as strength, plasticity and welding are well matched, and the application is the most extensive;
the alloy layer 3 has strength sigma b of 905-1150 MPa, residual elongation stress sigma r0.2 of 825-920 MPa, elongation delta 5 of 10-23%, area shrinkage phi of 25-38%, and density g of 4.6-5.2 g/cm 3 ；
The thickness of the alloy layer 3 is 2-5 mm, and the alloy layer 3 is used as a base for 3D printing;
the cross section of the base support plate 1 is in a chamfer rectangle or round shape, the bottom of the base support plate 1 is movably connected with a fixing mechanism, and the cross section of the base support plate 1 is suitable for different working conditions;
manufacturing an alloy layer 3 blank;
using a high frequency induction heater to heat pure titanium metal to a fully molten state in stages:
step one: screening titanium metal powder;
step two: introducing high-purity argon or helium and argon for combined protection, and then preheating titanium metal powder by using a high-frequency induction heater, heating to 320+/-5 ℃ to remove water in the components;
then maintaining the temperature at 320+/-5 ℃ for 2-3 hours, and removing the moisture in the components;
step three: adding the rest components according to the mass percentage, and fully mixing the titanium metal powder with the rest components to obtain mixed powder;
step four: heating the mixed powder in stages under vacuum by using a high-frequency induction heater;
the mixed powder is initially heated to 610+/-5 ℃ to maintain the temperature for 4.5 to 5.5 hours;
the second stage is continuously heated to 965+/-5 ℃ to maintain the temperature and preserve the temperature for 0.7 to 1.3 hours;
the third stage is to continue heating to 1245+/-5 ℃ for refining, and stopping heating after refining for 50-80 min;
manufacturing a plate blank:
step five: gradually cooling to 935+/-5 ℃, forging into a plate blank, annealing, and heating to 650+/-5 ℃ for 30-60 min;
step six: cutting the slab into a raw slab of an alloy layer 3;
step seven: using a machine tool to manufacture a Q235 plate into a raw blank of a base support plate 1 with a cylindrical or cuboid shape, arranging uniformly distributed weight reduction grooves 4 on one side of the base support plate 1, and arranging two clamping grooves 2 on two vertical side surfaces of the base support plate 1 respectively;
step eight: polishing the surface of the raw blank of the base support plate 1 to be smooth, deburring, removing surface oxide skin, polishing the surface of the raw blank of the alloy layer 3 to be smooth, deburring;
step nine: matching and stacking the polished base support plate 1 blank and the polished alloy layer 3 blank, and then welding in an argon environment to obtain a substrate rough substrate finished product;
step ten: chamfering the rectangular rough substrate finished product by using a lathe, polishing the substrate rough substrate finished product by using a grinder, and finally obtaining the substrate finished product.
By adopting the above-described scheme, the substrate for a 3D printer is manufactured through the above steps.
Further, the fixing mechanism is used for stably and rapidly clamping the substrate;
a securing mechanism comprising: the automatic clamping device comprises a control knob 5, a control screw rod 6, a fixed groove 7, a fixed column 8, a clamping seat 9, a connecting shaft 10, a control slide rod 11, a clamping base 12, a control cavity 13, a control nut 14, a sliding block 15, a limiting groove 16, a slide column 17 and a clamping cover plate 18, wherein the clamping cover plate 18 is arranged on one side of the clamping base 12, the control cavity 13 is formed in the clamping base 12, four fixed grooves 7 are uniformly formed in the top of the clamping base 12, two control screw rods 6 are uniformly arranged on the inner side of the clamping base 12, one of the two control screw rods 6 is fixedly provided with the control knob 5, two driving bevel gears are respectively arranged on the outer sides of one end of the control knob 5, one driving bevel gear is movably connected with one end of the base support plate 1, two driving bevel gears are respectively arranged on two ends of the connecting shaft 10, two control screw rods 14 are respectively connected with the outer sides of the adjacent driving bevel gears, two control nuts 14 are respectively arranged on the outer sides of the control screw rods 6, two control nuts 14 are respectively arranged on one group, two control screw rods 14 are respectively arranged on two control screw rods 6, two control screw rods 6 are respectively arranged on one side of each group, two control screw rods 14 are respectively connected with one side of the same control screw rod 11, two control screw rods are respectively connected with one side of the two control screw rods 11, two control screw rods are respectively connected with one end of the same side, and are respectively, and each control screw rod is respectively provided with two control nut is respectively, and each control nut is respectively is provided with a control nut is respectively.
Four limit grooves 16 are formed in the top of the clamping cover plate 18, the inner walls of the limit grooves 16 are in sliding connection with the outer sides of the sliding blocks 15, the outer sides of the clamping cover plate 18 are movably connected with the bottom of the base support plate 1, and the fixing mechanism is used for clamping and fixing the base plate.
Example 1: (1) the components for preparing the titanium alloy material are as follows:
0.25wt% iron (Fe), 0.17wt% carbon (C), 0.03wt% nitrogen (N), 0.015wt% hydrogen (H), 0.10wt% oxygen (O), 7.0wt% aluminum (Al), 4.0wt% vanadium (V), the remainder being titanium (Ti);
(2) the preparation substrate comprises the following steps:
manufacturing an alloy layer 3 blank;
using a high frequency induction heater to heat pure titanium metal to a fully molten state in stages:
step one: screening titanium metal powder;
step two: introducing high-purity argon or helium and argon for combined protection, and then preheating titanium metal powder by using a high-frequency induction heater, heating to 320+/-5 ℃ to remove water in the components;
then maintaining the temperature at 320+/-5 ℃ for 2.5 hours, and removing the moisture in the components.
Step three: adding the rest components according to the mass percentage, and fully mixing the titanium metal powder with the rest components to obtain mixed powder.
Step four: heating the mixed powder in stages under vacuum by using a high-frequency induction heater;
heating the mixed powder to 610+/-5 ℃ initially, maintaining the temperature and preserving the temperature for 5.3 hours;
the second stage is continuously heated to 965+/-5 ℃ to maintain the temperature and keep the temperature for 1h;
and in the third stage, heating to 1245+/-5 ℃ continuously, refining, and stopping heating after refining for 60 min.
Manufacturing a plate blank:
step five: gradually cooling to 935+ -5deg.C, forging to obtain plate blank, annealing, and heating to 650+ -5deg.C for 50min;
step six: cutting the slab into a raw slab of an alloy layer 3;
step seven: using a machine tool to manufacture a Q235 plate into a raw blank of a base support plate 1 with a cylindrical or cuboid shape, arranging uniformly distributed weight reduction grooves 4 on one side of the base support plate 1, and arranging two clamping grooves 2 on two vertical side surfaces of the base support plate 1 respectively;
step eight: polishing the surface of the raw blank of the base support plate 1 to be smooth, deburring, removing surface oxide skin, polishing the surface of the raw blank of the alloy layer 3 to be smooth, deburring;
step nine: matching and stacking the polished base support plate 1 blank and the polished alloy layer 3 blank, and then welding in an argon environment to obtain a substrate rough substrate finished product;
step ten: chamfering the rectangular rough substrate finished product by using a lathe, polishing the substrate rough substrate finished product by using a grinder, and finally obtaining the substrate finished product.
(3) The base support plate 1 had a strength σb of 980MPa, a residual elongation stress σr0.2 of 900MPa, an elongation δ5 of 15%, a reduction of area ψ of 258% and a density g of 5.1g/cm 3
Meets the product requirement.
Example 2: (1) the components for preparing the titanium alloy material are as follows:
the titanium alloy comprises 0.23wt% of iron (Fe), 0.16wt% of carbon (C), 0.02wt% of nitrogen (N), 0.006wt% of hydrogen (H), 0.07wt% of oxygen (O), 6.5wt% of aluminum (Al), 3.6t% of vanadium (V) and the balance of titanium (Ti);
(2) the preparation substrate comprises the following steps:
manufacturing an alloy layer 3 blank;
using a high frequency induction heater to heat pure titanium metal to a fully molten state in stages:
step one: screening titanium metal powder;
step two: introducing high-purity argon or helium and argon for combined protection, and then preheating titanium metal powder by using a high-frequency induction heater, heating to 320+/-5 ℃ to remove water in the components;
then maintaining the temperature at 320+/-5 ℃ for 2.1 hours, and removing the moisture in the components.
Step three: adding the rest components according to the mass percentage, and fully mixing the titanium metal powder with the rest components to obtain mixed powder.
Step four: heating the mixed powder in stages under vacuum by using a high-frequency induction heater;
heating the mixed powder to 610+/-5 ℃ initially, maintaining the temperature and preserving the temperature for 5.1h;
the second stage is continuously heated to 965+/-5 ℃ to maintain the temperature and preserve heat for 1.0h;
and in the third stage, heating to 1245+/-5 ℃ continuously, refining, and stopping heating after refining for 50 min.
Manufacturing a plate blank:
step five: gradually cooling to 935+ -5deg.C, forging to obtain plate blank, annealing, and heating to 650+ -5deg.C for 35min;
step six: cutting the slab into a raw slab of an alloy layer 3;
step seven: using a machine tool to manufacture a Q235 plate into a raw blank of a base support plate 1 with a cylindrical or cuboid shape, arranging uniformly distributed weight reduction grooves 4 on one side of the base support plate 1, and arranging two clamping grooves 2 on two vertical side surfaces of the base support plate 1 respectively;
step eight: polishing the surface of the raw blank of the base support plate 1 to be smooth, deburring, removing surface oxide skin, polishing the surface of the raw blank of the alloy layer 3 to be smooth, deburring;
step nine: matching and stacking the polished base support plate 1 blank and the polished alloy layer 3 blank, and then welding in an argon environment to obtain a substrate rough substrate finished product;
step ten: chamfering the rectangular rough substrate finished product by using a lathe, polishing the substrate rough substrate finished product by using a grinder, and finally obtaining the substrate finished product.
(3) The base support plate 1 had a strength σb of 905MPa, a residual elongation stress σr0.2 of 830MPa, an elongation δ5 of 10%, a reduction of area ψ of 25% and a density g of 4.8g/cm 3 。
Meets the product requirement.
Example 3: (1) the components for preparing the titanium alloy material are as follows:
the titanium alloy comprises 0.25wt% of iron (Fe), 0.20wt% of carbon (C), 0.04wt% of nitrogen (N), 0.014wt% of hydrogen (H), 0.17wt% of oxygen (O), 6.5wt% of aluminum (Al), 4.0wt% of vanadium (V) and the balance of titanium (Ti);
(2) the preparation substrate comprises the following steps:
manufacturing an alloy layer 3 blank;
using a high frequency induction heater to heat pure titanium metal to a fully molten state in stages:
step one: screening titanium metal powder;
step two: introducing high-purity argon or helium and argon for combined protection, and then preheating titanium metal powder by using a high-frequency induction heater, heating to 320+/-5 ℃ to remove water in the components;
then maintaining the temperature at 320+/-5 ℃ for 2.5 hours, and removing the moisture in the components.
Step three: adding the rest components according to the mass percentage, and fully mixing the titanium metal powder with the rest components to obtain mixed powder.
Step four: heating the mixed powder in stages under vacuum by using a high-frequency induction heater;
heating the mixed powder to 610+/-5 ℃ initially, maintaining the temperature and preserving the temperature for 5.5 hours;
the second stage is continuously heated to 965+/-5 ℃ to maintain the temperature and preserve heat for 1.3h;
and in the third stage, heating to 1245+/-5 ℃ continuously, refining for 80min, and stopping heating.
Manufacturing a plate blank:
step five: gradually cooling to 935+ -5deg.C, forging to obtain plate blank, annealing, and heating to 650+ -5deg.C for 55min;
step six: cutting the slab into a raw slab of an alloy layer 3;
step seven: using a machine tool to manufacture a Q235 plate into a raw blank of a base support plate 1 with a cylindrical or cuboid shape, arranging uniformly distributed weight reduction grooves 4 on one side of the base support plate 1, and arranging two clamping grooves 2 on two vertical side surfaces of the base support plate 1 respectively;
step eight: polishing the surface of the raw blank of the base support plate 1 to be smooth, deburring, removing surface oxide skin, polishing the surface of the raw blank of the alloy layer 3 to be smooth, deburring;
step nine: matching and stacking the polished base support plate 1 blank and the polished alloy layer 3 blank, and then welding in an argon environment to obtain a substrate rough substrate finished product;
step ten: chamfering the rectangular rough substrate finished product by using a lathe, polishing the substrate rough substrate finished product by using a grinder, and finally obtaining the substrate finished product.
(3) The base support plate 1 had a strength σb of 1115MPa, a residual elongation stress σr0.2 of 825MPa, an elongation δ5 of 20%, a reduction of area ψ of 30% and a density g of 5.0g/cm 3 。
Meets the product requirement.
As shown in fig. 1 to 8, the present invention proposes a fixing mechanism for a substrate for a 3D printer:
the substrate is placed at the top of the fixing mechanism, the control screw rod 6 is controlled to rotate through the control knob 5, the connecting shaft 10 enables the two control screw rods 6 to rotate simultaneously, the control screw rod 6 drives the control nut 14 to move along the direction of the central axis of the control screw rod 6, the two control nuts 14 located on the same control screw rod 6 are close to each other, the control nut 14 drives the control slide rod 11 to move, the control slide rod 11 drives the slide column 17 to move, the slide column 17 moves along the inner wall of the limit groove 16 with the slide block 15, the slide block 15 moves towards the middle with the clamping seat 9 and the fixing column 8, and the fixing column 8 is inserted into the inner cavity of the clamping groove 2, so that the substrate is clamped and fixed.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The substrate for the 3D printer comprises a base support plate (1), and is characterized in that two clamping grooves (2) are respectively formed in two sides of the base support plate (1), an alloy layer (3) is fixedly connected to the top of the base support plate (1), and the alloy layer (3) is made of titanium alloy;
the titanium alloy comprises 0.20-0.25wt% of iron (Fe), 0.15-0.20wt% of carbon (C), 0.02-0.04 wt% of nitrogen (N), 0-0.015 wt% of hydrogen (H), 0.06-0.18wt% of oxygen (O), 6.5-7.8wt% of aluminum (Al), 3.6-4.4wt% of vanadium (V) and the balance of titanium (Ti);
the cross section of the base supporting plate (1) is in a chamfer rectangle or round shape, and the bottom of the base supporting plate (1) is movably connected with a fixing mechanism;
the fixing mechanism includes: the automatic clamping device comprises a control knob (5), a control screw rod (6), a fixed groove (7), a fixed column (8), a clamping seat (9), a connecting shaft (10), a control sliding rod (11), a clamping base (12), a control cavity (13), a control nut (14), a sliding block (15), a limiting groove (16), a sliding column (17) and a clamping cover plate (18), wherein the clamping cover plate (18) is arranged on one side of the clamping base (12), and the control cavity (13) is formed in the clamping base (12);
four fixing grooves (7) are uniformly formed in the top of the clamping base (12), two control screw rods (6) are uniformly arranged on the inner side of the clamping base (12), one end of one control screw rod (6) is fixedly provided with a control knob (5), and transmission bevel gears are arranged on the outer sides of one end of each control knob (5);
the inner side of one end of the base supporting plate (1) is movably connected with a connecting shaft (10), two ends of the connecting shaft (10) are respectively provided with a driving bevel gear, the outer side of the driving bevel gear is meshed with the outer side of an adjacent driving bevel gear, two control nuts (14) are connected with the outer side of each control screw rod (6) in a threaded manner, each two control nuts (14) are in a group, and the two control nuts (14) of each group are respectively arranged at the same end of the outer sides of the two control screw rods (6);
one side of each control nut (14) is provided with a control slide bar (11), two control nuts (14) of each group are respectively and fixedly connected to two ends of the same control slide bar (11), two sliding columns (17) are movably connected to the outer sides of the control slide bars (11), sliding blocks (15) are arranged on the outer sides of the sliding columns (17), one side of each sliding block (15) is provided with a clamping seat (9), one side of each clamping seat (9) is provided with a fixing column (8), and one end of each fixing column (8) is movably connected with the inner wall of each clamping groove (2);
four limit grooves (16) are formed in the top of the clamping cover plate (18), the inner walls of the limit grooves (16) are in sliding connection with the outer sides of the sliding blocks (15), the outer sides of the clamping cover plate (18) are movably connected with the bottom of the base support plate (1), and the fixing mechanism is used for clamping and fixing the base plate.
2. The substrate for a 3D printer according to claim 1, wherein: the bottom of the base supporting plate (1) is uniformly provided with a plurality of weight reduction grooves (4), and the alloy layer (3) and the base supporting plate (1) are connected in a welding mode.
3. The substrate for a 3D printer according to claim 2, wherein: the base supporting plate (1) is made of Q235.
4. The substrate for a 3D printer according to claim 2, wherein: the alloy layer (3) has strength sigma b of 905-1150 MPa, residual elongation stress sigma r0.2 of 825-920 MPa, elongation delta 5 of 10-23%, area shrinkage phi of 25-38% and density g of 4.6-5.2 g/cm 3 。
5. The substrate for a 3D printer according to claim 1, wherein: the thickness of the alloy layer (3) is 2-5 mm.
6. The method for manufacturing a substrate for a 3D printer according to claim 4, wherein: manufacturing an alloy layer (3) blank;
using a high frequency induction heater to heat pure titanium metal to a fully molten state in stages:
step one: screening titanium metal powder;
step two: introducing high-purity argon or helium and argon for combined protection, and then preheating titanium metal powder by using a high-frequency induction heater, heating to 320+/-5 ℃ to remove water in the components;
then maintaining the temperature at 320+/-5 ℃ for 2-3 hours, and removing the moisture in the components;
step three: adding the rest components according to the mass percentage, and fully mixing the titanium metal powder with the rest components to obtain mixed powder;
step four: heating the mixed powder in stages under vacuum by using a high-frequency induction heater;
the mixed powder is initially heated to 610+/-5 ℃ to maintain the temperature for 4.5 to 5.5 hours;
the second stage is continuously heated to 965+/-5 ℃ to maintain the temperature and preserve the temperature for 0.7 to 1.3 hours;
the third stage is to continue heating to 1245+/-5 ℃ for refining, and stopping heating after refining for 50-80 min;
manufacturing a plate blank:
step five: gradually cooling to 935+/-5 ℃, forging into a plate blank, annealing, and heating to 650+/-5 ℃ for 30-60 min;
step six: cutting the slab into a raw slab of an alloy layer (3);
step seven: using a machine tool to manufacture a Q235 plate into a raw blank of a base support plate (1) with a cylindrical or cuboid shape, arranging uniformly distributed weight reduction grooves (4) on one side of the base support plate (1), and arranging two clamping grooves (2) on two vertical side surfaces of the base support plate (1) respectively;
step eight: polishing the surface of a raw blank of the base support plate (1) to be smooth, deburring and removing surface oxide skin, and polishing the surface of the raw blank of the alloy layer (3) to be smooth and deburring;
step nine: matching and stacking the polished base support plate (1) blank and the polished alloy layer (3) blank, and then welding in an argon environment to obtain a substrate rough substrate finished product;
step ten: chamfering the rectangular rough substrate finished product by using a lathe, polishing the substrate rough substrate finished product by using a grinder, and finally obtaining the substrate finished product.
CN202210370034.4A 2022-04-08 2022-04-08 Substrate for 3D printer and preparation method thereof Active CN114951704B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210370034.4A CN114951704B (en) 2022-04-08 2022-04-08 Substrate for 3D printer and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210370034.4A CN114951704B (en) 2022-04-08 2022-04-08 Substrate for 3D printer and preparation method thereof

Publications (2)

Publication Number Publication Date
CN114951704A CN114951704A (en) 2022-08-30
CN114951704B true CN114951704B (en) 2023-06-16

Family

ID=82976927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210370034.4A Active CN114951704B (en) 2022-04-08 2022-04-08 Substrate for 3D printer and preparation method thereof

Country Status (1)

Country Link
CN (1) CN114951704B (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106111982B (en) * 2016-08-25 2018-12-25 甘肃顺域新材料科技有限公司 A kind of reusable 3D metallic print substrate
CN107553904A (en) * 2017-10-30 2018-01-09 陕西爱骨医疗股份有限公司 Family expenses 3D printer with Milling Function
CN208624425U (en) * 2018-07-24 2019-03-22 安徽威尔玛渔具科技有限公司 A kind of fishing rod fixing device that can be clamped automatically
WO2020159476A1 (en) * 2019-01-29 2020-08-06 Hewlett-Packard Development Company, L.P. Powder based 3d printing
CN210328149U (en) * 2019-07-02 2020-04-14 无锡兆奕达电子科技有限公司 Multilayer printed circuit board
CN211105634U (en) * 2019-08-02 2020-07-28 福州启智达三维科技有限公司 3D print pen auxiliary stand
CN112626372B (en) * 2019-10-08 2022-06-07 大田精密工业股份有限公司 Titanium alloy sheet material and method for producing same
CN111215627A (en) * 2019-12-05 2020-06-02 菏泽学院 Intelligent manufacturing device and preparation process for titanium alloy additive
CN212528716U (en) * 2019-12-21 2021-02-12 苏州无限三维科技产业有限公司 Printing platform
CN213002648U (en) * 2020-06-30 2021-04-20 沈阳镭泰克激光自动化科技有限公司 Preheating slow-cooling platform based on coaxial powder feeding 3D printing technology
JP2022038879A (en) * 2020-08-27 2022-03-10 三菱重工業株式会社 Dissimilar material joined product, base plate for lamination molding, lamination molding device and lamination molding method
CN216001460U (en) * 2021-08-20 2022-03-11 浙江迅实科技有限公司 3D printing platform
CN114082991A (en) * 2021-10-29 2022-02-25 北京工业大学 Assembled substrate for powder bed melting additive manufacturing and using method thereof
CN114226986B (en) * 2022-01-12 2022-12-02 西南交通大学 Laser-arc hybrid welding platform and welding method for titanium alloy plate

Also Published As

Publication number Publication date
CN114951704A (en) 2022-08-30

Similar Documents

Publication Publication Date Title
CN108145157B (en) Preparation method of high-performance molybdenum-rhenium alloy bar
CN111057903B (en) Large-size titanium alloy locking ring and preparation method thereof
CN101130840A (en) Hydrogen permeating superplasticity processing method for in-situ synthesized titanium-based composite material
CN114951704B (en) Substrate for 3D printer and preparation method thereof
CN111188016B (en) High-performance CrAlSiX alloy target and preparation method thereof
CN113953512B (en) Large length-diameter ratio deep-hole thin-wall tungsten alloy shell and hot isostatic pressing preparation method thereof
CN101195882A (en) Production method for magnetron sputtering Co-Cr-Ta alloy target
CN1932058A (en) Beta titanium alloy product and its smelting process and heat treatment process
CN111074177A (en) Amorphous composite material and method for preparing flexible coupling diaphragm by using same
CN115612876B (en) Preparation method of beta-type titanium alloy plate
CN116804265A (en) CrAlCuFe alloy target and preparation method thereof
CN113878948B (en) Large-size eutectic high-entropy alloy and preparation method and application thereof
CN107937840B (en) A kind of titanium-aluminium alloy composite material and preparation method
CN116079055A (en) CrAlFe-based alloy target and preparation method thereof
CN115502403A (en) Preparation method of large-size and high-density molybdenum target
CN115255367A (en) Nickel-aluminum alloy sputtering target material and hot-pressing preparation method thereof
CN111254293B (en) Preparation and purification treatment method of aluminum foil blank
CN113444987A (en) Zirconium-based amorphous alloy composite material, thin-wall part and preparation method and application thereof
CN109371304B (en) Molybdenum-based composite material reinforced by in-situ generated molybdenum carbide and preparation method thereof
CN108220700B (en) Aluminum-titanium-niobium ternary alloy target and preparation method thereof
JPS6058289B2 (en) Manufacturing method of high chromium alloy material
CN112322935A (en) Titanium-tantalum alloy plate with negative thermal expansion characteristic and preparation method thereof
CN114672682B (en) High-performance powder metallurgy titanium alloy part and preparation method thereof
CN111139375A (en) Preparation method of superhard titanium alloy substrate
CN113733686B (en) Solid state carburization or ion carburization preparation of layered titanium-based composite material and method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant