CN104275405B - Stamping die and stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy - Google Patents
Stamping die and stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy Download PDFInfo
- Publication number
- CN104275405B CN104275405B CN201410534889.1A CN201410534889A CN104275405B CN 104275405 B CN104275405 B CN 104275405B CN 201410534889 A CN201410534889 A CN 201410534889A CN 104275405 B CN104275405 B CN 104275405B
- Authority
- CN
- China
- Prior art keywords
- mold core
- lower mold
- core
- center
- stroke
- 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
Links
Classifications
-
- 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
-
- 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
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention belongs to the technical field of stamping dies, and relates to a faceted stamping die and a stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy. The stamping die is characterized in that upper die cores are fixed to the lower side of an upper die holder, center lower die cores which can be driven by ejector rods to move up and down are arranged in the middle of the upper side of a lower die holder, edge expansion lower die cores which can be driven by nitrogen cylinders to move up and down are arranged on the lower die holder and are positioned on two sides of the center lower die cores, and the stroke of each edge expansion lower die core is larger than the stroke of each center lower die core and is different from the stroke of the center lower die core by 50-100mm. The stamping method for the automobile bumpers includes processes of manufacturing magnesium-aluminum alloy blanks; coating lubricating grease on the upper die cores, the lower die cores or/and the magnesium-aluminum alloy blanks; feeding the magnesium-aluminum alloy blanks; starting the ejector rods to drive the center lower die cores to move upwardly; starting the nitrogen cylinders to drive the edge expansion lower die cores to move upwardly; opening the die and the like. The faceted stamping die and the stamping method have the advantages that stress on the die is stable in stamping procedures, accordingly, the integral mobility and ductility of metal components can be improved, and problems of easiness in cracking and high resilience when components made of magnesium-aluminum alloy are stamped at present can be solved.
Description
Technical field
The invention belongs to Stamping Die Technology field, refer in particular to a kind of diel of high-strength magnesium aluminium alloy automobile bumper
And its process for stamping.
Background technology
With expanding economy, the scarcity of our the increasingly protection of concern for the environment and the energy, magnalium will gradually generation
Become the primary selection of automotive light weight technology for steel plate materialses.Because bumper belongs to long narrow, the zero of longitudinal big rise and fall
Part, and magnalium elongation is relatively low, therefore manufactures extremely difficult in molding, magnalium molding time is longer therefore to be produced
Processing hardening phenomenon, more XXL molding difficulty.Forming surface out-of-flatness can be produced using traditional mould punching, springback capacity is big,
Easy to crack, stress unbalance loading is larger.For this phenomenon, carry out the research of facet formula diel, to difference in same mould
Plane carries out independent punching press, solves the problems, such as due to the relatively low difficult forming brought of magnalium ductility.
Content of the invention
It is an object of the invention to provide a kind of diel of high-strength magnesium aluminium alloy automobile bumper and its process for stamping.
The object of the present invention is achieved like this:
High-strength magnesium aluminium alloy automobile bumper facet formula diel, including upper bolster and die shoe, under upper bolster
Side is fixed with upper mold core, and the upper middle side part of described die shoe is provided with the center lower mold core that top rod driving moves up and down, under center
The side lower mold core that nitrogen cylinder driving moves up and down is provided with the die shoe of core rod both sides, during the stroke of side lower mold core is more than
The stroke of heart lower mold core, side lower mold core is 50 100mm with the progressive error of center lower mold core.
The stroke of above-mentioned side lower mold core is 125mm, and the stroke of center lower mold core is 50mm, under side lower mold core and center
The progressive error of core rod is 75mm.
Above-mentioned upper mold core be set gradually from left to right side-mode core, middle core rod, upper central core, middle core rod, side-mode core
Assemble and formed；Described lower mold core is that the side lower mold core that sets gradually from left to right, center lower mold core, side lower mold core assemble shape
Become；Center lower mold core is to be symmetrically arranged with side form core and assemble in the both sides of lower central core to be formed；The lower surface setting of upper mold core
Have and bumper upper surface identical surface configuration, the upper surface of lower mold core is provided with identical with bumper lower surface
Surface configuration.
Above-mentioned upper mold core is directly installed on upper bolster by bolt, and the center lower mold core of lower mold core is arranged on by bolt
On the holding pad of center, two side lower mold core are arranged on side pressure flitch by bolt respectively, center holding pad and side pressure flitch
Unification is arranged on die shoe, and center holding pad is moved up and down by top rod driving and then the center lower mold core of drive moves up and down, side
Holding pad is driven by nitrogen cylinder and moves up and down and then drive side lower mold core to move up and down.
With the method for above-mentioned high-strength magnesium aluminium alloy automobile bumper facet formula diel punching press bumper, wrap
Include following steps:
(1) make the magnalium blank of the strip type of punching press bumper；
(2) outer surface in the lower surface of upper mold core and the upper surface of lower mold core or/and magnalium blank smears cga
With dc2-90lube grease is it is ensured that the fluency of metal flow；
(3) magnalium blank or outer surface are smeared the magnalium blank of cga with dc2-90lube grease
It is placed in lower mold core, upper bolster and upper mold core movement to punching press position and are positioned；
(4) first start forcing press to drive push rod and then drive the stroke that setting is moved on center holding pad and center lower mold core
Afterwards, restart the stroke that setting is moved on nitrogen cylinder driving side holding pad and side lower mold core, magnalium blank is struck out
The bumper that magnalium is made；
(5) mold, take off the good bumper of step (4) punching press.
The setting stroke moving on above-mentioned center holding pad and center lower mold core is 50mm, on side pressure flitch and side lower mold core
The setting stroke 125mm moving.
The de- material forming surface of above-mentioned upper mold core and lower mold core is all surface-treated using carbo-nitriding.
Brief description
Fig. 1 is the sectional view of the present invention.
Fig. 2 is the view sub-anatomy of the present invention.
Specific embodiment
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1 Fig. 2:
High-strength magnesium aluminium alloy automobile bumper facet formula diel, including upper bolster 10 and die shoe 30, upper bolster
10 downside is fixed with upper mold core 21,22,23,24,25, and the upper middle side part of described die shoe 30 is provided with push rod 71,72 and drives
The center lower mold core 52,53,54 moving up and down, the die shoe 30 of center lower mold core 52,53,54 both sides is provided with nitrogen cylinder
61st, the 62 side lower mold core 51,55 that moves up and down of driving, the stroke of side lower mold core 51,55 be more than center lower mold core 52,53,
54 stroke, side lower mold core is 50 100mm with the progressive error of center lower mold core.
The stroke of above-mentioned side lower mold core 51,55 is 125mm, and the stroke of center lower mold core is 50mm, side lower mold core 51,
55 is 75mm with the progressive error of center lower mold core.
Above-mentioned upper mold core 21,22,23,24,25 be set gradually from left to right side-mode core 21, middle core rod 22, upper center
Core rod 23, middle core rod 24, side-mode core 25 assemble and are formed；Described lower mold core 51,52,53,54,55 sets gradually from left to right
Side lower mold core 51, center lower mold core 52,53,54, side lower mold core 55 assembles and formed；Center lower mold core 52,53,54 be under
The both sides of central core 53 are symmetrically arranged with side form core 52,54 and assemble and formed；The lower surface of upper mold core 21,22,23,24,25 sets
It is equipped with and bumper upper surface identical surface configuration, the upper surface of lower mold core 51,52,53,54,55 is provided with and automobile
Bumper lower surface identical surface configuration, due to upper mold core 21,22,23,24,25 and lower mold core 51,52,53,54,55
De- material forming surface is by multiple splicing compositions, therefore claims facet formula diel.
Above-mentioned upper mold core 21,22,23,24,25 is directly installed on upper bolster 10 by bolt, lower mold core 51,52,53,
54th, 55 center lower mold core 52,53,54 is arranged on center holding pad 40 by bolt, and two side lower mold core 51,55 are respectively
It is arranged on side pressure flitch 41,42 by bolt, center holding pad 40 and side pressure flitch 41,42 unification are arranged on die shoe 30
On, center holding pad 40 is driven by push rod 71,72 and moves up and down and then drive center lower mold core 52,53,54 to move up and down, side pressure
Flitch 41,42 is driven by nitrogen cylinder 61,62 respectively and moves up and down and then drive side lower mold core 51,55 to move up and down.
With the method for above-mentioned high-strength magnesium aluminium alloy automobile bumper facet formula diel punching press bumper, wrap
Include following steps:
(1) make the magnalium blank of the strip type of punching press bumper；
(2) in the lower surface of upper mold core 21,22,23,24,25 and the upper surface of lower mold core 51,52,53,54,55 or/and
The outer surface of magnalium blank smears cga with dc2-90lube grease it is ensured that the fluency of metal flow；
(3) magnalium blank or outer surface are smeared the magnalium blank of cga with dc2-90lube grease
It is placed in lower mold core 51,52,53,54,55, will be mobile to upper bolster 10 and upper mold core 21,22,23,24,25 to punching press position and fixed
Position；
(4) first start forcing press to drive push rod 71,72 and then drive center holding pad 40 and center lower mold core 52,53,54
On move to the stroke of setting after, restart and move in nitrogen cylinder 61,62 driving side holding pads 41,42 and side lower mold core 51,55
The stroke setting, magnalium blank is struck out the bumper that magnalium is made；
(5) mold, take off the good bumper of step (4) punching press.
The setting stroke moving on above-mentioned center holding pad 40 and center lower mold core 52,53,54 is 50mm, side pressure flitch and exhibition
The setting stroke 125mm moving in side lower mold core 51,55.
De- material forming surface a, b of above-mentioned upper mold core 21,22,23,24,25 and lower mold core 51,52,53,54,55, c, d, e are equal
It is surface-treated using carbo-nitriding and form one layer of harder top layer.
The operation principle of the present invention and the general introduction of prominent technique effect:
It is pressure source with independent nitrogen spring (nitrogen cylinder) and push rod respectively to each stamping surface, make in forming process
Mould uniform force is stable, reduces mould stress unbalance loading, solves stability under loading sex chromosome mosaicism in punching course for the mould.
Because magnalium elongation is relatively low, by being directed to different forming surface in same mold cavity with nitrogen spring
Carry out independent punching press with push rod as pressure source so that the magnalium metal in different stamping surfaces makees independent deformation, plus
The strong metal fluidity of one-piece parts, overcomes the defect of magnalium poor ductility, thus solving magnalium parts
The big problem of punching press resilience easy to crack.
Because bumper longitudinal direction span and normal direction fluctuation ratio are larger, the metal ductility ratio of magnalium is relatively low,
Conventional monoblock type impact style cannot be realized, and facet formula magnalium diel operation principle is in punching course
Carry out facet stagewise punching press, by push rod punching press upwards, its stroke is 50mm to punching press initial period, and this section of punching stroke is to ensure that
De- material forming surface b, c of center lower mold core 52,53,54, d complete press work, then two nitrogen cylinders 61,62 continue up into
Row press work, its stroke is 125mm, and this section of stroke is to ensure that de- material forming surface a, e of side lower mold core 51,55 completes punching press
Work.
Because magnalium Metal Viscosity is big, unbalanced stress during punch forming, therefore can lead to problem easy to crack, pass through
Five de- material forming surface a, b, c, d, e are independently cast, hardness is increased using carbo-nitriding process of surface treatment, stamping surface adopts
Cga with dc2-90lube grease lubrication is it is ensured that the fluency of metal flow.
Above-described embodiment is only presently preferred embodiments of the present invention, not limits the scope of the invention according to this, therefore: all according to
The equivalence changes that the structure of the present invention, shape, principle are done, all should be covered by within protection scope of the present invention.
Claims (7)
1. high-strength magnesium aluminium alloy automobile bumper facet formula diel, including upper bolster and die shoe, the downside of upper bolster
Be fixed with upper mold core it is characterised in that: the upper middle side part of described die shoe is provided with mould under the center that top rod driving moves up and down
Core, the die shoe of center lower mold core both sides is provided with the side lower mold core that nitrogen cylinder driving moves up and down, side lower mold core
Stroke is more than the stroke of center lower mold core, and side lower mold core is 50 100mm with the progressive error of center lower mold core.
2. high-strength magnesium aluminium alloy automobile bumper facet formula diel according to claim 1 it is characterised in that: institute
The stroke stating side lower mold core is 125mm, and the stroke of center lower mold core is 50mm, the stroke of side lower mold core and center lower mold core
Difference is 75mm.
3. high-strength magnesium aluminium alloy automobile bumper facet formula diel according to claim 1 it is characterised in that: institute
Stating upper mold core is that the side-mode core that sets gradually from left to right, middle core rod, upper central core, middle core rod, side-mode core assemble and formed；Institute
The center lower mold core of stating is to be symmetrically arranged with side form core and assemble in the both sides of lower central core to be formed；The lower surface of upper mold core is provided with
With bumper upper surface identical surface configuration, the upper surface of the lower mold core that side lower mold core is formed with center lower mold core sets
It is equipped with and bumper lower surface identical surface configuration.
4. high-strength magnesium aluminium alloy automobile bumper facet formula diel according to claim 3 it is characterised in that: institute
State upper mold core to be directly installed on upper bolster by bolt, the center lower mold core of lower mold core is arranged on center holding pad by bolt
On, two side lower mold core are arranged on side pressure flitch by bolt respectively, and center holding pad and the unification of side pressure flitch are arranged on
On die shoe, center holding pad is moved up and down by top rod driving and then the center lower mold core of drive moves up and down, and side pressure flitch is by nitrogen
Air cylinder driven moves up and down and then drives side lower mold core to move up and down.
5. use the high-strength magnesium aluminium alloy automobile bumper facet formula diel punching press vapour described in any one of claim 14
The method of car bumper it is characterised in that: comprise the steps:
(1) make the magnalium blank of the strip type of punching press bumper；
(2) outer surface in the lower surface of upper mold core and the upper surface of lower mold core or/and magnalium blank smears cgawith
Dc2-90lube grease is it is ensured that the fluency of metal flow；
(3) the magnalium blank that magnalium blank or outer surface are smeared cgawith dc2-90lube grease is placed to
In lower mold core, upper bolster and upper mold core movement to punching press position and are positioned；
(4) after first starting forcing press drive push rod and then driving the stroke that setting is moved on center holding pad and center lower mold core,
Restart the stroke that setting is moved on nitrogen cylinder driving side holding pad and side lower mold core, magnalium blank is struck out magnalium
The bumper that alloy is made；
(5) mold, take off the good bumper of step (4) punching press.
6. use high-strength magnesium aluminium alloy automobile bumper facet formula diel punching press car insurance according to claim 5
The method of thick stick it is characterised in that: the setting stroke moving on described center holding pad and center lower mold core is 50mm, side pressure flitch and
The setting stroke 125mm moving in the lower mold core of side.
7. use high-strength magnesium aluminium alloy automobile bumper facet formula diel punching press car insurance according to claim 5
The method of thick stick it is characterised in that: the de- material forming surface of described upper mold core and lower mold core is all surface-treated using carbo-nitriding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534889.1A CN104275405B (en) | 2014-10-11 | 2014-10-11 | Stamping die and stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534889.1A CN104275405B (en) | 2014-10-11 | 2014-10-11 | Stamping die and stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104275405A CN104275405A (en) | 2015-01-14 |
| CN104275405B true CN104275405B (en) | 2017-01-25 |
Family
ID=52251023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410534889.1A Active CN104275405B (en) | 2014-10-11 | 2014-10-11 | Stamping die and stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104275405B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149442A (en) * | 2015-08-19 | 2015-12-16 | 苏州金鸿顺汽车部件股份有限公司 | Stamping molding die for automobile front beam tube |
| CN110369590A (en) * | 2019-08-02 | 2019-10-25 | 苏州骏创汽车科技股份有限公司 | A kind of mold of car insurance lead screw processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2689539A (en) * | 1949-02-05 | 1954-09-21 | Lyon George Albert | Apparatus for making wheel covers |
| US3197996A (en) * | 1962-12-07 | 1965-08-03 | Budd Co | Redrawing dies for deep drawing to varying depths |
| CN201231286Y (en) * | 2008-07-31 | 2009-05-06 | 钢铁研究总院 | Baby fixation device for imaging department |
| CN203109049U (en) * | 2012-12-27 | 2013-08-07 | 浙江黄岩冲模有限公司 | Inverted drawing die for anti-collision beams of ultrahigh-strength steel plate automobile doors |
| CN103418683A (en) * | 2013-07-16 | 2013-12-04 | 成都兴宇精密铸造有限公司 | Stamping die for fuel tank cover plate |
| CN103658289A (en) * | 2013-12-23 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Punching forming method and die |
-
2014
- 2014-10-11 CN CN201410534889.1A patent/CN104275405B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2689539A (en) * | 1949-02-05 | 1954-09-21 | Lyon George Albert | Apparatus for making wheel covers |
| US3197996A (en) * | 1962-12-07 | 1965-08-03 | Budd Co | Redrawing dies for deep drawing to varying depths |
| CN201231286Y (en) * | 2008-07-31 | 2009-05-06 | 钢铁研究总院 | Baby fixation device for imaging department |
| CN203109049U (en) * | 2012-12-27 | 2013-08-07 | 浙江黄岩冲模有限公司 | Inverted drawing die for anti-collision beams of ultrahigh-strength steel plate automobile doors |
| CN103418683A (en) * | 2013-07-16 | 2013-12-04 | 成都兴宇精密铸造有限公司 | Stamping die for fuel tank cover plate |
| CN103658289A (en) * | 2013-12-23 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Punching forming method and die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104275405A (en) | 2015-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10406582B2 (en) | Press-forming apparatus, method for producing press-formed product using the forming apparatus, and press-formed product | |
| JP2012232329A (en) | Press molding method and device | |
| JP4920756B2 (en) | Manufacturing method of flange structure | |
| KR101867744B1 (en) | Press forming method and method for manufacturing pressed product as well as press forming apparatus | |
| CN201676960U (en) | Novel high strength steel plate die structure | |
| CN104275405B (en) | Stamping die and stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy | |
| CN104785697A (en) | Multi-directional stamping composite molding mould for hub unit outer flange blank | |
| CN204974783U (en) | Wheel nut multistation extrusion die | |
| JP2008238240A (en) | Method and apparatus for press-forming aluminum alloy sheet | |
| CN106077382A (en) | A kind of high intensity 20CrMoNi duplex spur gear precise forming process and mould | |
| JP2008238234A (en) | Warm-forging press apparatus for manufacturing forge-ring and method for manufacturing forged-ring using this | |
| KR20070011647A (en) | Manufacturing device and manufacturing method of sprocket segment | |
| CN111906189A (en) | Plate incremental forming point contact processing method without circumferential friction | |
| KR100810103B1 (en) | Forging method of decreasing diameter type product | |
| RU2501626C2 (en) | Method and device for blade forging | |
| CN205341770U (en) | Parallel double -end cold -heading device | |
| CN101486062A (en) | Thermoforming and edge-cutting integrated technique and mold of high-duty steel part | |
| CN204657369U (en) | A kind of hub outward flange blank multi-ram forging composite molding die | |
| CN209349454U (en) | A kind of dedicated forging equipment of high-speed railway track switch iron seat | |
| CN202052857U (en) | High strength steel plate drawing die of framework cross beam of back bumper | |
| CN205341776U (en) | Parallel double -end cold -heading cover half | |
| RU2399456C1 (en) | Method for stamping of forged pieces of crosspiece type in stamp with horizontal connector of matrices | |
| CN108672512B (en) | Production process of motor car brake base and cold press molding die | |
| CN105344910B (en) | Parallel double end cold-heading cover half | |
| CN105344904B (en) | Parallel double end cold-heading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Stamping die and stamping method for high-strength automobile bumpers made of magnesium-aluminum alloy Effective date of registration: 20190419 Granted publication date: 20170125 Pledgee: Zhejiang Taizhou Huangyan Rural Commercial Bank Co., Ltd. Pledgor: ZHEJIANG HUANGYAN DIE CO., LTD. Registration number: 2019330000109 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220209 Granted publication date: 20170125 Pledgee: Zhejiang Taizhou Huangyan Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG HUANGYAN DIE Co.,Ltd. Registration number: 2019330000109 |