CN109017650A - A kind of T word arc collision prevention girders and its Hydroform process - Google Patents
A kind of T word arc collision prevention girders and its Hydroform process Download PDFInfo
- Publication number
- CN109017650A CN109017650A CN201810818503.8A CN201810818503A CN109017650A CN 109017650 A CN109017650 A CN 109017650A CN 201810818503 A CN201810818503 A CN 201810818503A CN 109017650 A CN109017650 A CN 109017650A
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- Prior art keywords
- collision prevention
- prevention girders
- square tube
- top surface
- plug
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1893—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact comprising a multiplicity of identical adjacent shock-absorbing means
Abstract
The invention discloses a kind of T word arc collision prevention girders, it is fixed by the bracket on the connecting cross beam of headstock or the tailstock, the collision prevention girders are arranged in a long strip shape, the top surface of collision prevention girders is arcwall face, it is higher than left and right ends in the middle part of the top surface, and by the left and right ends of top surface towards the middle part gradually upward arc-shaped transition of top surface, the inner hollow of collision prevention girders is arranged, the left side of the collision prevention girders and the section of right side are rendered as T-shaped section, it is formed on the top surface of collision prevention girders fluted, the groove and collision prevention girders are coaxial, i.e. the both ends open of groove is provided with respectively on the left side and right side of collision prevention girders, several through-holes are equally spacedly offered in the slot bottom of groove, it is reinforcing rib below the top surface of the collision prevention girders, it is equipped with fastener in through-holes, the slot bottom of groove is supported on the reinforcing rib by fastener.
Description
Technical field
The present invention relates to automotive parts manufacturing technology, more particularly to a kind of using Hydroform process manufacture
T word arc collision prevention girders.
Background technique
In the prior art, it for the manufacture of collision prevention girders, is generally made of roll-in, punching press, thermoforming process, Sheet Metal Forming Technology
At low cost but forming effect is poor, and the strength of materials after forming is low, and safety coefficient is poor；The high production efficiency of rolling process, material benefit
It is high with rate but the requirement of pair cross-section is also very harsh, heat stamping and shaping principle be steel plate through being heated to 900 ° it is left back after carry out heat
Punching press, then cool down in a mold, martensite is formed, armor plate strength, but the anticollision of thermoforming process manufacture can be increased substantially
Beam generally can only be made into U-lag and thermoforming is due to being to carry out under high temperature environment due to being limited by stamping die
Punching press, steel are in soft state at this time, and the requirement to stamping technology is high, and technical difficulty is big, it is easy to scrap, and its cost
It is also much higher relative to other techniques.
In addition, some producers of Germany additionally use to mould the collision prevention girders of Dai Gang at present, processing technology is similar with thermoforming,
It is to use ultra-high molecular weight polyethylene (UHMWPE) resin for raw material, dedicated anti-wear agent is added, in superhigh-pressure high-temp state
Under be made, requirement of the technique to production environment is also more harsh.
Summary of the invention
There is provided the technical problem to be solved by the present invention is to status in view of the above technology a kind of T word arc collision prevention girders and its
Hydroform process.
To achieve the above object, the present invention provides the following technical scheme that
A kind of T word arc collision prevention girders, are fixed by the bracket on the connecting cross beam of headstock or the tailstock, and the collision prevention girders are in long strip
Setting, the top surface of collision prevention girders are arcwall face, are higher than left and right ends in the middle part of the top surface, and by the left and right ends Chao Ding of top surface
Gradually upward arc-shaped transition, the inner hollow of collision prevention girders are arranged at the middle part in face, the left side of the collision prevention girders and cutting for right side
Face is rendered as T-shaped section, is formed on the top surface of collision prevention girders fluted, the groove and collision prevention girders are coaxial, i.e. groove
Both ends open is provided with respectively on the left side and right side of collision prevention girders, is equally spacedly offered in the slot bottom of groove several logical
Hole is reinforcing rib below the top surfaces of the collision prevention girders, is equipped with fastener in through-holes, by fastener by the slot bottom branch of groove
Support is on the reinforcing rib.
As an improvement of the present invention, several anticollision ribs are equally spacedly provided with along axial direction in the top surface of the collision prevention girders,
The anticollision rib protrudes setting relative to the top surface of the collision prevention girders.
It is a kind of for manufacturing the process of above-mentioned T word arc collision prevention girders, it use hydraulic forming equipment, it is described hydraulic
Former includes hydraulic forming mold, and the hydraulic forming mold includes upper die and lower die, in the bottom of the upper mold
With type chamber is offered at the top of lower die, after molding, the type chamber of upper mold and lower die constitutes T-shaped die cavity, the ruler of the die cavity
It is very little close with the standard size of T-shaped collision prevention girders, section semicircular in shape is also provided at the top of the bottom of upper mold and lower die
Groove, after molding, the groove of upper mold and lower die is formed with circular channel, and circular channel is connected with mold cavity, it is hydraulic at
The two sides of shape mold are provided with plug, and the rear portion of plug is fixed on hydraulic cylinder, and the front of plug is plugged in circular channel,
Plug is fed by Driven by Hydraulic Cylinder towards die cavity direction, and runner is formed in plug, stream is offered on the side wall of plug
The import in road offers the outlet of runner in the front end of plug, is connected to feed flow source by water pipe in the import of runner, the work
Process includes following steps:
1) hydraulic forming mold, is designed according to the standard size of required T word arc collision prevention girders.So that the size of die cavity and T word arc
The standard size of shape collision prevention girders is consistent；
2) punching press preform, is carried out to hollow square tube；
3), the square tube after preform is placed into lower die, the press machine above subsequent start-up upper mold drives upper mold by press machine
It pushes, so that upper mold and lower die mold, by square tube closing into die cavity；
4) hydraulic cylinder for, starting die cavity two sides is fed towards die cavity by Driven by Hydraulic Cylinder plug, the both ends of square tube is blocked；
5), from feed flow source by runner to inputting liquid inside square tube so that hydraulic inside square tube is gradually increased, the pipe of square tube
Wall under the action of internal pressure gradually outward expansion, until square tube tube wall be expanded under the action of internal hydraulic pressure in die cavity
Wall fitting；
6) formed punch, is built-in in upper mold or lower die, the head of formed punch and the inner wall of die cavity are concordant, when the tube wall and die cavity of square tube
Inner wall fitting after, start formed punch punching, form through-hole on the tube wall of square tube；
7), pressure release then divides mould, and the collision prevention girders after forming is taken out；
8), reinforcing rib is soldered to the bottom of the collision prevention girders.
As an improvement of the present invention, in above-mentioned step 6), can provide from driving mechanism to formed punch is more than in square tube
The lower pressure of pressure is punched out, or is quickly moved up by driving mechanism driving formed punch, internal pressure and external draught head by square tube
The punching on tube wall.
As a preference of the present invention, the punching press preform is by the lower width punching press of the square tube in step 2
Become smaller, while the upper width punching press of the square tube being increased.
As the specific technical solution of the present invention, in step 5), the liquid used is water or liquid polyurethane.
As a further improvement of the present invention, in step 5), while the tube wall of square tube gradually expands outward, square tube
The plug at both ends continues opposite feeding feed supplement.
As a preference of the present invention, being dried before step 8) to the collision prevention girders.
Compared with the prior art, the advantages of the present invention are as follows: it can be produced under normal temperature environment, the requirement to manufacturing environment
It is relatively low, and since using hydroforming, the requirement to mold is relatively low, to reduce entire production cost, make
Top surface and bottom surface are attached by the T word arc collision prevention girders produced by then passing through fastener, its intensity is made to have obtained significantly mentioning
Height, and be inner hollow due to the collision prevention girders and form opening section at both ends, therefore also have the advantages that light-weighted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of T word arc collision prevention girders in the embodiment of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the structural schematic diagram of hydraulic forming equipment in the embodiment of the present invention.
Specific embodiment
Below in conjunction with figure embodiment, the present invention is described in further detail.
As shown in the picture, the present embodiment is a kind of T word arc collision prevention girders 1, is fixed by the bracket the company in headstock or the tailstock
It connects on crossbeam, is located at the rear portion of bumper, the collision prevention girders are arranged in a long strip shape, and are seen by side, and entire collision prevention girders are in
It is now arch, i.e. the top side of collision prevention girders is arcwall face, and the middle height of top surface is higher than the left and right ends of collision prevention girders, and by top surface
Left and right ends towards the middle part gradually upward arc-shaped transition of top surface, the manufacture material of collision prevention girders is stainless steel square tube, and also some are adopted
It is high-strength aluminum alloy, the inner hollow setting of collision prevention girders, the left side of collision prevention girders and the section of right side are rendered as T word
Tee section, forms fluted on the top surface of collision prevention girders, and the groove and collision prevention girders are coaxial, i.e. the both ends open difference of groove
It is provided on the left side and right side of collision prevention girders, equally spacedly offers several through-holes 2, the top of collision prevention girders in the slot bottom of groove
It is welded with reinforcing rib 3 below face, is equipped with fastener 14 in through-holes, the slot bottom of groove is supported on by described add by fastener
In strengthening tendons, in this way, a supporting role can be played by top surface of the reinforcing rib to collision prevention girders, compared to solid collision prevention girders, originally
The structure of hollow the collision prevention girders combination fastener and reinforcing rib of embodiment can save collision prevention girders while guaranteeing anticollision intensity
Internal material and mitigate collision prevention girders weight, be conducive to automotive light weight technology.
Several anticollision ribs 4 made of rubber, anticollision rib are equally spacedly provided with along axial direction in the top surface of collision prevention girders
Setting is protruded in top surface relative to the collision prevention girders, and the external impact force that anticollision rib can buffer slight intensity makes collision prevention girders
At direct impact, prevent the collision prevention girders under slight intensity from also being deformed by collision.
In the present embodiment, the technique of internal high pressure forming that be using hydroforming be mainly is anti-to manufacture above-mentioned T word arc
Hit beam, this technique uses special hydraulic forming equipment, which includes hydraulic forming mold, it is hydraulic at
Shape mold includes upper mold 5 and lower die 6, and upper die and lower die are made of high-intensitive mould steel, the bottom and lower die in upper mold
Top offer type chamber, when upper die and lower die molding after, the type chamber of upper mold and lower die constitutes section mould in T shape
Chamber 7, the i.e. size of die cavity are consistent with the standard size of T-shaped collision prevention girders, are also provided at the top of the bottom of upper mold and lower die
The groove of section semicircular in shape, after molding, the groove of upper mold and lower die is formed with circular channel 8, circular channel one end and die cavity
Inside is connected, and the other end of circular channel forms opening in the side of molding rear mold.In the two sides of hydraulic forming mold
It is provided with a hydraulic cylinder 9, the fixed plug 10 on hydraulic cylinder provides driving force, plug one end from hydraulic cylinder to plug
Be fixed on hydraulic cylinder, the other end is extend into circular channel by being open, hydraulic cylinder can drive plug along circular channel to
Die cavity direction straight-line feed, until plug is contradicted to the pipe end for being located at square tube in die cavity, thus by plug that the both ends of square tube are close
Envelope.Runner 11 is provided in two plugs or wherein any one plug, the import of runner is provided on the side wall of plug,
And import is to be provided with plug to be always positioned on the part of mold exterior, and the outlet of runner is provided on the front end face of plug,
Feed flow source 13 is connected to by water pipe 12 in the import of runner, liquid is inputted the inside of square tube by booster pump by feed flow source,
The specific flow direction of its liquid be followed successively by feed flow source, water pipe, tunnel inlets, runner, runner exit, inside square tube.With constantly
To square tube delivered inside liquid (water or liquid polyurethane), hydraulic inside square tube is gradually increased, can be by hydraulic drive square tube
Tube wall expand outward, tube wall gradually outward expand during, if the length of square tube is constant, square tube width become
When big, thinning phenomenon will occur for tube wall, and the intensity of final formed product is caused to become smaller, and the tube wall of square tube exists in order to prevent
It is thinned during hydroforming, during the tube wall of square tube gradually expands outward, the ambilateral hydraulic cylinder of mould continues to drive
Dynamic plug opposite direction feeding, squeezes square tube, so that the length of square tube shortens, which is feed supplement process.
The process includes following steps:
1) hydraulic forming mold, is designed according to the standard size of required T word arc collision prevention girders.So that the size of die cavity and T word arc
The standard size of shape collision prevention girders is consistent；
2) punching press preform, is carried out to hollow square tube；
3), the square tube after preform is placed into lower die, the press machine above subsequent start-up upper mold drives upper mold by press machine
It pushes, so that upper mold and lower die mold, by square tube closing into die cavity；
4) hydraulic cylinder for, starting die cavity two sides is fed towards die cavity by Driven by Hydraulic Cylinder plug, the both ends of square tube is blocked；
5), from feed flow source by runner to inputting liquid inside square tube so that hydraulic inside square tube is gradually increased, the pipe of square tube
Wall under the action of internal pressure gradually outward expansion, until square tube tube wall be expanded under the action of internal hydraulic pressure in die cavity
Wall fitting；
6) formed punch 15, is built-in in upper mold or lower die, the head of formed punch and the inner wall of die cavity are concordant, when the tube wall and mould of square tube
After the inner wall fitting of chamber, starts formed punch punching, form through-hole on the tube wall of square tube；
7), pressure release then divides mould, and the collision prevention girders after forming is taken out；
8), reinforcing rib is soldered to the bottom of the collision prevention girders.
In above-mentioned step 6), it can be rushed from driving mechanism to the lower pressure that formed punch offer is more than square tube internal pressure
Hole, or quickly moved up by driving mechanism driving formed punch, by the internal pressure and external draught head punching on tube wall of square tube.
In step 2, the punching press preform is that the lower width punching press of the square tube becomes smaller, while by the side
The upper width punching press of pipe increases.
In step 5), the liquid used is water or liquid polyurethane.
In step 5), while the tube wall of square tube gradually expands outward, the plug at square tube both ends continues opposite feeding
Feed supplement.
Before step 8), the collision prevention girders are dried.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of T word arc collision prevention girders, are fixed by the bracket on the connecting cross beam of headstock or the tailstock, it is characterised in that: described
Collision prevention girders are arranged in a long strip shape, and the top surface of collision prevention girders is arcwall face, are higher than left and right ends in the middle part of the top surface, and by top surface
Middle part gradually upward arc-shaped transition of the left and right ends towards top surface, the inner hollow setting of collision prevention girders, the left end of the collision prevention girders
The section of face and right side is rendered as T-shaped section, is formed on the top surface of collision prevention girders fluted, and the groove and collision prevention girders are same
Axial, i.e., the both ends open of groove is provided with respectively on the left side and right side of collision prevention girders, groove slot bottom equally spacedly
Several through-holes are offered, is reinforcing rib below the top surface of the collision prevention girders, is equipped with fastener in through-holes, it will by fastener
The slot bottom of groove is supported on the reinforcing rib.
2. T word arc collision prevention girders according to claim 1, it is characterised in that: in the top surface of the collision prevention girders along axial etc.
Several anticollision ribs are provided with to spacing, the anticollision rib protrudes setting relative to the top surface of the collision prevention girders.
3. a kind of for manufacturing the process of T word arc collision prevention girders as described in claim 1, it sets using hydroforming
Standby, the hydraulic forming equipment includes hydraulic forming mold, and the hydraulic forming mold includes upper die and lower die, described
Type chamber is offered at the top of the bottom of upper mold and lower die, after molding, the type chamber of upper mold and lower die constitutes T-shaped die cavity, institute
The standard size of the size and T-shaped collision prevention girders of stating die cavity is close, is also provided with section at the top of the bottom of upper mold and lower die
The groove of semicircular in shape, after molding, the groove of upper mold and lower die is formed with circular channel, and circular channel is connected with mold cavity
It is logical, it is provided with plug in the two sides of hydraulic forming mold, the rear portion of plug is fixed on hydraulic cylinder, and the front of plug is plugged in
In circular channel, plug is fed by Driven by Hydraulic Cylinder towards die cavity direction, runner is formed in plug, in the side wall of plug
On offer the import of runner, offer the outlet of runner in the front end of plug, be connected in the import of runner by water pipe
Feed flow source, which includes following steps:
1) hydraulic forming mold, is designed according to the standard size of required T word arc collision prevention girders, so that the size of die cavity and T word arc
The standard size of shape collision prevention girders is consistent；
2) punching press preform, is carried out to hollow square tube；
3), the square tube after preform is placed into lower die, the press machine above subsequent start-up upper mold drives upper mold by press machine
It pushes, so that upper mold and lower die mold, by square tube closing into die cavity；
4) hydraulic cylinder for, starting die cavity two sides is fed towards die cavity by Driven by Hydraulic Cylinder plug, the both ends of square tube is blocked；
5), from feed flow source by runner to inputting liquid inside square tube so that hydraulic inside square tube is gradually increased, the pipe of square tube
Wall under the action of internal pressure gradually outward expansion, until square tube tube wall be expanded under the action of internal hydraulic pressure in die cavity
Wall fitting；
6) formed punch, is built-in in upper mold or lower die, the head of formed punch and the inner wall of die cavity are concordant, when the tube wall and die cavity of square tube
Inner wall fitting after, start formed punch punching, form through-hole on the tube wall of square tube；
7), pressure release then divides mould, and the collision prevention girders after forming is taken out；
8), reinforcing rib is soldered to the bottom of the collision prevention girders.
4. the process of manufacture T word arc collision prevention girders according to claim 3, it is characterised in that: in above-mentioned step
6) it in, can be punched out from driving mechanism to the lower pressure that formed punch offer is more than square tube internal pressure, or driven by driving mechanism
Formed punch quickly moves up, by the internal pressure and external draught head punching on tube wall of square tube.
5. the process of manufacture T word arc collision prevention girders according to claim 3, it is characterised in that: in step 2, institute
Stating punching press preform is the lower width punching press of the square tube to become smaller, while the upper width punching press of the square tube being increased.
6. the process of manufacture T word arc collision prevention girders according to claim 3, it is characterised in that: in step 5), adopt
Liquid is water or liquid polyurethane.
7. the process of manufacture T word arc collision prevention girders according to claim 3, it is characterised in that: in step 5),
While the tube wall of square tube gradually expands outward, the plug at square tube both ends continues opposite feeding feed supplement.
8. the process of manufacture T word arc collision prevention girders according to claim 3, it is characterised in that: before step 8),
The collision prevention girders are dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818503.8A CN109017650A (en) | 2018-07-24 | 2018-07-24 | A kind of T word arc collision prevention girders and its Hydroform process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818503.8A CN109017650A (en) | 2018-07-24 | 2018-07-24 | A kind of T word arc collision prevention girders and its Hydroform process |
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| CN109017650A true CN109017650A (en) | 2018-12-18 |
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| CN201810818503.8A Pending CN109017650A (en) | 2018-07-24 | 2018-07-24 | A kind of T word arc collision prevention girders and its Hydroform process |
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| KR19980035830A (en) * | 1996-11-15 | 1998-08-05 | 박병재 | Bumper Beam Structure of Automobile |
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| CN105945121A (en) * | 2016-05-25 | 2016-09-21 | 浙江摩多巴克斯科技股份有限公司 | In-mold cutting device in internal high-pressure forming equipment and process thereof |
| CN106862361A (en) * | 2017-03-27 | 2017-06-20 | 浙江摩多巴克斯科技股份有限公司 | A kind of oversize becomes lightweight internal high pressure forming technique |
-
2018
- 2018-07-24 CN CN201810818503.8A patent/CN109017650A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980035830A (en) * | 1996-11-15 | 1998-08-05 | 박병재 | Bumper Beam Structure of Automobile |
| KR20030041307A (en) * | 2001-11-19 | 2003-05-27 | 기아자동차주식회사 | Bumper Back Beam for Vehicle |
| CN103459881A (en) * | 2011-02-16 | 2013-12-18 | 肯联铝业辛根有限责任公司 | Motor vehicle bumper with an integrated pedestrian protection system |
| CN105598248A (en) * | 2016-02-25 | 2016-05-25 | 浙江摩多巴克斯科技股份有限公司 | Device for increasing pipe wall thickness through internal high pressure forming and process thereof |
| CN105945121A (en) * | 2016-05-25 | 2016-09-21 | 浙江摩多巴克斯科技股份有限公司 | In-mold cutting device in internal high-pressure forming equipment and process thereof |
| CN106862361A (en) * | 2017-03-27 | 2017-06-20 | 浙江摩多巴克斯科技股份有限公司 | A kind of oversize becomes lightweight internal high pressure forming technique |
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