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FR2287365A1 - Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness - Google Patents

Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness

Info

Publication number
FR2287365A1
FR2287365A1 FR7434391A FR7434391A FR2287365A1 FR 2287365 A1 FR2287365 A1 FR 2287365A1 FR 7434391 A FR7434391 A FR 7434391A FR 7434391 A FR7434391 A FR 7434391A FR 2287365 A1 FR2287365 A1 FR 2287365A1
Authority
FR
France
Prior art keywords
degrees
wall thickness
light alloy
vehicle bumper
tube form
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.)
Granted
Application number
FR7434391A
Other languages
French (fr)
Other versions
FR2287365B1 (en
Inventor
Camille Meresse
Jean-Claude Rouanet
Michel Denoux
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.)
Cegedur Societe de Transformation de lAluminium Pechiney SA
Original Assignee
Cegedur Societe de Transformation de lAluminium Pechiney SA
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 Cegedur Societe de Transformation de lAluminium Pechiney SA filed Critical Cegedur Societe de Transformation de lAluminium Pechiney SA
Priority to FR7434391A priority Critical patent/FR2287365A1/en
Publication of FR2287365A1 publication Critical patent/FR2287365A1/en
Application granted granted Critical
Publication of FR2287365B1 publication Critical patent/FR2287365B1/fr
Granted legal-status Critical Current

Links

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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, rods or tubes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
    • 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
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • B60R2019/182—Structural beams therefor, e.g. shock-absorbing made of metal of light metal, e.g. extruded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Extrusion Of Metal (AREA)

Abstract

Safety bumper for a maintenance engine or vehicle obtd. by hot extruding an alloy contg. by wt. 0.6-0.9% Si, 0.4-0.7% Mg, 0.15-0.30% Fe, 0.05-0.20% Cu, 0.05-0.15% Cr, =0.5% Mn, =0.20% Zn, =0.10% Ti, bal Al, is made by first homogenising 4-12 hrs at 54-600 degrees C, cooling at 100-250 degrees C/hr. reheating to 450-540 degrees C, hot extruding in an extrusion press and quenching at >150 degrees C/min, then tempering at 150-200 degrees C for 4-12 hrs., and is designed so that its protruding part has a higher moment of inertia than the other parts. The cross section is esp. tubular with the protruding part thicker than the other walls and opt. reinforced by ribs. The bumper conforms to the rigid US standard for shock resistance at low speeds, while being formable in a single piece without weld joints, nuts and bolts or other fastenings.
FR7434391A 1974-10-10 1974-10-10 Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness Granted FR2287365A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7434391A FR2287365A1 (en) 1974-10-10 1974-10-10 Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7434391A FR2287365A1 (en) 1974-10-10 1974-10-10 Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness

Publications (2)

Publication Number Publication Date
FR2287365A1 true FR2287365A1 (en) 1976-05-07
FR2287365B1 FR2287365B1 (en) 1977-03-18

Family

ID=9144033

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7434391A Granted FR2287365A1 (en) 1974-10-10 1974-10-10 Hot worked, hardened tempered light alloy vehicle bumper - in tube form with unequal wall thickness

Country Status (1)

Country Link
FR (1) FR2287365A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144844A1 (en) * 1980-11-14 1982-06-03 Aisin Seiki K.K., Kariya, Aichi Reinforcement for the bumper of a motor vehicle
EP0687743A1 (en) * 1994-06-16 1995-12-20 The Furukawa Electric Co., Ltd. Aluminum alloy bumper-reinforcing material and method of producing the same
EP2088216A1 (en) * 2008-02-07 2009-08-12 Audi AG Aluminium alloy
CN107267818A (en) * 2017-06-07 2017-10-20 安徽生信铝业股份有限公司 A kind of bumper aluminium alloy and preparation method thereof
EP2841611B1 (en) 2012-04-25 2018-04-04 Norsk Hydro ASA Extruded profile of Al-Mg-Si aluminium alloy with improved properties
CN110129634A (en) * 2019-05-23 2019-08-16 捷安特轻合金科技(昆山)股份有限公司 A kind of high manganese 6XXX line aluminium alloy of the high energy absorption capacity of impact resistance and preparation method thereof
CN111560546A (en) * 2020-04-29 2020-08-21 广东凤铝铝业有限公司 Aluminum alloy with high crushing performance and preparation method of section bar of aluminum alloy

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144844A1 (en) * 1980-11-14 1982-06-03 Aisin Seiki K.K., Kariya, Aichi Reinforcement for the bumper of a motor vehicle
EP0687743A1 (en) * 1994-06-16 1995-12-20 The Furukawa Electric Co., Ltd. Aluminum alloy bumper-reinforcing material and method of producing the same
EP2088216A1 (en) * 2008-02-07 2009-08-12 Audi AG Aluminium alloy
EP2841611B1 (en) 2012-04-25 2018-04-04 Norsk Hydro ASA Extruded profile of Al-Mg-Si aluminium alloy with improved properties
CN107267818A (en) * 2017-06-07 2017-10-20 安徽生信铝业股份有限公司 A kind of bumper aluminium alloy and preparation method thereof
CN107267818B (en) * 2017-06-07 2019-02-22 安徽生信铝业股份有限公司 A kind of bumper aluminium alloy and preparation method thereof
CN110129634A (en) * 2019-05-23 2019-08-16 捷安特轻合金科技(昆山)股份有限公司 A kind of high manganese 6XXX line aluminium alloy of the high energy absorption capacity of impact resistance and preparation method thereof
CN111560546A (en) * 2020-04-29 2020-08-21 广东凤铝铝业有限公司 Aluminum alloy with high crushing performance and preparation method of section bar of aluminum alloy

Also Published As

Publication number Publication date
FR2287365B1 (en) 1977-03-18

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CD Change of name or company name