CN111515290A - Aluminum alloy box-shaped piece deep drawing test die - Google Patents

Aluminum alloy box-shaped piece deep drawing test die Download PDF

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Publication number
CN111515290A
CN111515290A CN201910107768.1A CN201910107768A CN111515290A CN 111515290 A CN111515290 A CN 111515290A CN 201910107768 A CN201910107768 A CN 201910107768A CN 111515290 A CN111515290 A CN 111515290A
Authority
CN
China
Prior art keywords
die
percent
aluminum alloy
drawing test
alloy box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910107768.1A
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Chinese (zh)
Inventor
傅垒
李利
黄鸣东
刘成
王苗苗
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.)
China Aluminum Material Application Institute Co ltd
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China Aluminum Material Application Institute Co ltd
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Filing date
Publication date
Application filed by China Aluminum Material Application Institute Co ltd filed Critical China Aluminum Material Application Institute Co ltd
Priority to CN201910107768.1A priority Critical patent/CN111515290A/en
Publication of CN111515290A publication Critical patent/CN111515290A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/01—Selection of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention provides a drawing test die for an aluminum alloy box-shaped piece, wherein the box-shaped piece is polygonal, the die comprises an upper template and a lower template which are arranged in parallel, and a supporting column is arranged between the upper template and the lower template; a female die is arranged below the upper template; the lower template comprises: the pressure adjusting component is used for adjusting the pressure between the upper template and the lower template, and the male die and the pressure sensor are supported by the male die supporting block and correspond to the female die; the pressure adjustment assembly includes a cylindrical and ring-type adjustment member. The method can evaluate the forming performance of the aluminum alloy sheet in a complex stress state, well reflect the actual stress strain state in the part forming process, and guide the development of the aluminum alloy automobile parts.

Description

Aluminum alloy box-shaped piece deep drawing test die
Technical Field
The invention relates to a drawing test die, in particular to an aluminum alloy box-shaped piece drawing test die.
Background
With the widespread use of aluminum alloy sheet in automobiles, the forming performance requirements of aluminum alloy sheet are increasing, and the forming performance and test method part 3 of GBT 15825.3-2008: the forming performance of the metal sheet was evaluated by using a cup-shaped member in the deep drawing and deep drawing load test. The cup-shaped piece is of an axisymmetric structure, so that the complex stress state of the aluminum alloy automobile part in the drawing forming process is difficult to reflect, the drawing forming process of the box-shaped piece is complex, the forming of a round corner is similar to the drawing of the cup-shaped piece, the forming of a straight edge is similar to the bending forming, and the actual stress strain state in the part forming process can be well reflected through the coordination and restriction of the deformation of all areas so as to guide the development of the aluminum alloy automobile part.
Application publication No.: CN 104384324A, name "a deep drawing mould" invented a deep drawing mould that can effectively control blank material moving direction, but it provided blank holding force with the spring, can not show the size of blank holding force provided in due time.
Application publication No.: CN 106391866A, entitled "blank holder force adjustable deep drawing die structure and use method thereof", invented a blank holder force adjustable deep drawing die, but it is mainly used for batch production, the degree of flexibility of the die is lower, the terrace die can not be changed, it is difficult to satisfy the requirements of the aluminum alloy sheet deep drawing test of different plate thicknesses.
Disclosure of Invention
The invention aims to provide an aluminum alloy box-shaped part drawing test die capable of reflecting complex stress in a part forming process, which is realized by adopting the following technical scheme:
a deep drawing test die for an aluminum alloy box-shaped piece is provided, the box-shaped piece is polygonal,
the die comprises an upper die plate and a lower die plate which are arranged in parallel, and a supporting column is arranged between the upper die plate and the lower die plate; a female die is arranged below the upper template;
the lower template comprises: the pressure adjusting component is used for adjusting the pressure between the upper template and the lower template, and the male die and the pressure sensor are supported by the male die supporting block and correspond to the female die; the pressure adjustment assembly includes a cylindrical and ring-type adjustment member.
Furthermore, the cylindrical pressure regulating part is arranged in the ring-shaped regulating part in series around the male die, the number of the cylindrical pressure regulating part is at least 4, and the initial end of the ring-shaped regulating part is connected with the pressure sensor and is provided with an air vent.
Furthermore, the female die is connected with the upper template through a pin and a fastening bolt.
Furthermore, the male die and the supporting block thereof are provided with clamping grooves for fixing the long bolts, and the male die and the supporting block are connected through bolts to realize replacement.
Furthermore, the upper template is connected with the lower template through a guide pillar and a matched guide sleeve.
Further, the female die and the male die consist of the following components in percentage by mass: 1.45 to 1.70 percent of C, 0.1 to 0.4 percent of Si, 0.25 to 0.40 percent of Mn, 0.01 to 0.03 percent of P, 0.01 to 0.03 percent of S, 0.0 to 12.5 percent of Cr11, 0.4 to 0.6 percent of Mo, 0.15 to 0.30 percent of V, and the balance of Fe.
Further, the female die and the male die consist of the following components in percentage by mass: 1.55 to 1.70 percent of C, 0.25 to 0.40 percent of Si, 0.25 to 0.35 percent of Mn, 0.01 to 0.02 percent of P, 0.01 to 0.02 percent of S, 11.5 to 12.5 percent of Cr11, 0.5 to 0.6 percent of Mo, 0.15 to 0.25 percent of V, and the balance of Fe.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
(1) the deep drawing test die for the aluminum alloy box-shaped piece has the advantages of simple structure and convenience in operation, the male die can be conveniently replaced by disassembling the bolt, the deep drawing test requirements of box-shaped pieces with different plate thicknesses are met, the flexibility degree is high, the labor intensity is effectively reduced, and the test efficiency is improved;
(2) the drawing test die provided by the invention is provided with the nitrogen springs with the number of at least 4, so that the instant blank holder force is provided for the blank holder, and the specific pressure value is visually displayed through the pressure sensor, so that the accurate control of the blank holder force is realized, a better processing effect can be obtained, and the workpiece quality is improved;
(3) the deep drawing test die provided by the invention better reflects the actual stress-strain state in the part forming process through the coordinated restriction of deformation of each area, replaces a cup-shaped part to evaluate the forming performance of a metal sheet, and has greater guiding significance for the development of aluminum alloy automobile parts.
Drawings
FIG. 1: the invention provides a drawing test die schematic diagram;
FIG. 2: the invention provides a schematic diagram of a lower template of a drawing test die;
FIG. 3: the invention provides a schematic diagram of an upper template of a drawing test die;
FIG. 4: the invention provides a schematic diagram of a pressure adjusting assembly of a drawing test die;
FIG. 5: the invention provides a connection schematic diagram of a male die and a supporting block of a drawing test die, wherein 1, an upper die plate is arranged; 2, a female die; 3, pressing a blank holder; 4, a lower template; 5, male die; 6 a male die supporting block; 7, a vent; 8, a pressure sensor; 9 a nitrogen spring; 10 series pipeline; 11, pins; 12 fastening a bolt; 13 a guide post; 14, a guide sleeve; 15 long bolts.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them.
As shown in fig. 1-5, a drawing test die for an aluminum alloy box-shaped part mainly comprises an upper template and a lower template. The upper template mainly comprises an upper template 1, a female die 2, a pin 11 and a fastening bolt 12, wherein the female die is connected with the upper template through the fastening bolt after being positioned by the pin and the upper template; the lower bolster is by blank holder 3, lower bolster 4, terrace die 5, terrace die supporting shoe 6, blow vent 7, manometer 8, nitrogen spring 9, series connection pipeline 10, guide pillar 13, guide pin bushing 14 is constituteed, the terrace die is fixed a position on the terrace die supporting shoe by the draw-in groove, fix on the terrace die supporting shoe through long bolt 15, the terrace die is convenient to be changed, in order to satisfy the box deep-drawing test requirement that different boards are thick, nitrogen spring aerifys the gassing through the blow vent, then provide the blank holder through series connection pipeline, the manometer shows the blank holder power that nitrogen spring provided, can provide different blank holders power for the blank holder.
Example 1:
the vent 7 is connected with a nitrogen compressor, when the pressure gauge 8 displays 10KN, the inflation is stopped, and the uniformly distributed nitrogen springs 9 provide 10KN uniform blank holder force for the box-shaped part drawing test through the blank holder 3.
The long bolt 15 is unscrewed, the male die suitable for the thickness of 2mm plate is taken out and replaced by the male die suitable for the thickness of 1.5mm plate, the male die is positioned on the male die supporting block 6 through the clamping groove, the long bolt 15 is screwed and fixed on the male die supporting block 6, and the male die is replaced by the aluminum alloy plate suitable for the thickness of 1.5 mm.
Example 2:
the vent 7 is opened to release gas, when the pressure gauge 8 displays 5KN, the gas release is stopped, and the uniformly distributed nitrogen springs 9 provide 5KN uniform blank holder force for the box-shaped part drawing test through the blank holder 3.
The long bolt 15 is unscrewed, the male die suitable for the thickness of 2mm plate is taken out and replaced by the male die suitable for the thickness of 2.5mm plate, the male die is positioned on the male die supporting block 6 through the clamping groove, the long bolt 15 is screwed and fixed on the male die supporting block 6, and the male die is replaced by the aluminum alloy plate suitable for the thickness of 2.5 mm.
The above description is only exemplary of the invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the invention is intended to be covered by the appended claims.

Claims (7)

1. A deep drawing test die for an aluminum alloy box-shaped part is polygonal, and is characterized in that the die comprises an upper template and a lower template which are arranged in parallel, and a support column is arranged between the upper template and the lower template; a female die is arranged below the upper template;
the lower template comprises: the pressure adjusting component is used for adjusting the pressure between the upper template and the lower template, and the male die and the pressure sensor are supported by the male die supporting block and correspond to the female die; the pressure adjustment assembly includes a cylindrical and ring-type adjustment member.
2. The die for the deep drawing test of the aluminum alloy box-shaped part as claimed in claim 1, wherein the cylindrical pressure regulating members are arranged in a ring-shaped regulating member in series around the male die and have at least 4 numbers, and the beginning end of the ring-shaped regulating member is connected with the pressure sensor and is provided with a vent.
3. The drawing test die for the aluminum alloy box-shaped part as claimed in claim 1, wherein the female die is connected with the upper die plate through a pin and a fastening bolt.
4. The die for the deep drawing test of the aluminum alloy box-shaped part according to claim 1, wherein the male die and the supporting block thereof are provided with clamping grooves for fixing the long bolts, and the male die and the supporting block are connected through the bolts to realize replacement.
5. The deep drawing test die for the aluminum alloy box-shaped part as claimed in claim 1, wherein the upper die plate and the lower die plate are connected through a guide pillar and a matched guide sleeve.
6. The drawing test die for the aluminum alloy box-shaped part as claimed in claim 1, wherein the female die and the male die are composed of the following components in percentage by mass: 1.45 to 1.70 percent of C, 0.1 to 0.4 percent of Si, 0.25 to 0.40 percent of Mn, 0.01 to 0.03 percent of P, 0.01 to 0.03 percent of S, 11.0 to 12.5 percent of Cr, 0.4 to 0.6 percent of Mo, 0.15 to 0.30 percent of V, and the balance of Fe.
7. The drawing test die for the aluminum alloy box-shaped part as claimed in claim 1, wherein the female die and the male die are composed of the following components in percentage by mass: 1.55 to 1.70 percent of C, 0.25 to 0.40 percent of Si, 0.25 to 0.35 percent of Mn, 0.01 to 0.02 percent of P, 0.01 to 0.02 percent of S, 11.5 to 12.5 percent of Cr, 0.5 to 0.6 percent of Mo, 0.15 to 0.25 percent of V and the balance of Fe.
CN201910107768.1A 2019-02-02 2019-02-02 Aluminum alloy box-shaped piece deep drawing test die Pending CN111515290A (en)

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Application Number Priority Date Filing Date Title
CN201910107768.1A CN111515290A (en) 2019-02-02 2019-02-02 Aluminum alloy box-shaped piece deep drawing test die

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751591A (en) * 2021-09-18 2021-12-07 中航西安飞机工业集团股份有限公司 Thermal forming die and forming method for box-shaped titanium alloy part
CN114393088A (en) * 2021-12-31 2022-04-26 天津市捷威动力工业有限公司 Aluminum-plastic film pit punching die and pit punching method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08243880A (en) * 1994-12-07 1996-09-24 Us Amada Ltd Machine tool with stamping device
CN1434282A (en) * 2003-03-07 2003-08-06 江苏大学 Edge pressing force and punching speed changeable single moving sheet hydraulic test machine
US20070240470A1 (en) * 2003-11-11 2007-10-18 Noriyuki Suzuki Press-Forming Device, Press-Forming Method, Computer Program/Software Arrangement and Storage Medium
CN101164715A (en) * 2006-10-18 2008-04-23 宝山钢铁股份有限公司 Unsymmetrical stretching forming mould capable of inducing plate material to rebound
CN101259498A (en) * 2007-03-06 2008-09-10 昭和电工包装株式会社 Forming method and forming device for battery shell
CN202752417U (en) * 2012-09-05 2013-02-27 江苏华强模具科技有限公司 Mold of adopting nitrogen springs to replace oil press ejector rod
CN106345880A (en) * 2016-12-02 2017-01-25 江麓机电集团有限公司 Aluminum alloy thin plate high box-shaped element stretching forming process
CN208408257U (en) * 2018-05-28 2019-01-22 安徽江淮汽车集团股份有限公司 A kind of drawing die of M shape high-strength plate

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08243880A (en) * 1994-12-07 1996-09-24 Us Amada Ltd Machine tool with stamping device
CN1434282A (en) * 2003-03-07 2003-08-06 江苏大学 Edge pressing force and punching speed changeable single moving sheet hydraulic test machine
US20070240470A1 (en) * 2003-11-11 2007-10-18 Noriyuki Suzuki Press-Forming Device, Press-Forming Method, Computer Program/Software Arrangement and Storage Medium
CN101164715A (en) * 2006-10-18 2008-04-23 宝山钢铁股份有限公司 Unsymmetrical stretching forming mould capable of inducing plate material to rebound
CN101259498A (en) * 2007-03-06 2008-09-10 昭和电工包装株式会社 Forming method and forming device for battery shell
CN202752417U (en) * 2012-09-05 2013-02-27 江苏华强模具科技有限公司 Mold of adopting nitrogen springs to replace oil press ejector rod
CN106345880A (en) * 2016-12-02 2017-01-25 江麓机电集团有限公司 Aluminum alloy thin plate high box-shaped element stretching forming process
CN208408257U (en) * 2018-05-28 2019-01-22 安徽江淮汽车集团股份有限公司 A kind of drawing die of M shape high-strength plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751591A (en) * 2021-09-18 2021-12-07 中航西安飞机工业集团股份有限公司 Thermal forming die and forming method for box-shaped titanium alloy part
CN114393088A (en) * 2021-12-31 2022-04-26 天津市捷威动力工业有限公司 Aluminum-plastic film pit punching die and pit punching method thereof

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Application publication date: 20200811