EP1802411A1 - Giesswerkzeug und verfahren zur herstellung von aus leichtmetalllegierungen gegossenen werkstücken - Google Patents
Giesswerkzeug und verfahren zur herstellung von aus leichtmetalllegierungen gegossenen werkstückenInfo
- Publication number
- EP1802411A1 EP1802411A1 EP05794467A EP05794467A EP1802411A1 EP 1802411 A1 EP1802411 A1 EP 1802411A1 EP 05794467 A EP05794467 A EP 05794467A EP 05794467 A EP05794467 A EP 05794467A EP 1802411 A1 EP1802411 A1 EP 1802411A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting tool
- core part
- tool according
- casting
- positioning element
- 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
Links
- 238000005266 casting Methods 0.000 title claims abstract description 82
- 229910001092 metal group alloy Inorganic materials 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 230000002349 favourable effect Effects 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 239000006262 metallic foam Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/064—Locating means for cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
- B22D15/005—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of rolls, wheels or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/24—Accessories for locating and holding cores or inserts
Definitions
- the invention relates to a casting tool for producing workpieces cast from light metal alloys, in particular for the motor vehicle industry, wherein at least one positioning element is provided for fixing at least one preformed core part remaining in the cast workpiece in a predetermined position in the casting tool, and a method for producing workpieces cast from light metal alloys, in particular for the motor vehicle industry, wherein at least one preformed core part remaining in the cast workpiece is held in a predetermined position in a casting tool.
- a rim made of a light metal alloy in which a core part has fixedly arranged positioning elements in order to be positioned in the mold.
- Posi ⁇ tionierimplantation have a relatively large extent and form material weaknesses, so that in these areas when loading the rim very high voltage spikes, especially in dynamic bending and torsional stresses occur.
- a similar casting process is also already known from WO1 / 66283 A1 or AT 409 728 B, in which positioning elements which are fixedly arranged in the core part are also provided. These positioning elements also have an air discharge channel for the escape of expanding air.
- this method has a very high expenditure on production technology, and equally high voltage peaks occur due to the fixed positioning elements in the core part.
- a positioning element for a sand core is known from US 2004/0099398 A1, wherein the positioning element is fastened therein in the manufacture of the sand core, and via which a connection with the casting tool can be produced.
- the pin-shaped positioning elements which are fastened in the manner of a nail in the casting tool, have a pouring element extending transversely to the longitudinal direction of the shaft of the positioning element, which is firmly fused into the shaped body for firm connection of the positioning element in the molded body to be cast ,
- an exact positioning of the core parts should be ensured and a comparatively high degree of design freedom in the production of the workpieces is made possible.
- the core part (s) of the light metal workpiece to be produced can be reliably held in a predetermined position in the casting tool, but only comparatively small openings or impressions in the casting after removal of the positioning elements Core part or in the light metal surrounding the core part remain at the point at which a positioning element has penetrated into the core part during the casting process, so that the finished light metal workpiece has only comparatively lower voltage peaks in the region of the positioning elements.
- any workpieces made of light metal alloys, in particular of aluminum-containing light metal alloys, can be produced with the casting tool, in particular on the Is given in the automotive industry a great need forcht ⁇ metal workpieces, so that the casting tool ins ⁇ special light metal wheels or -feigen and longitudinal and transverse links, subframe parts, various types of struts so ⁇ as components for suspensions and the like are produced can. Due to the low stress peaks, which can be achieved by means of the pin-shaped positioning elements fastened to the casting tool, the workpieces produced with the aid of the casting tool according to the invention are particularly well suited to being exposed to dynamic bending and torsional forces.
- the pin-shaped positioning element In order to facilitate the penetration of the positioning element into the core part, it is expedient for the pin-shaped positioning element to be at least partially conical.
- the pin-shaped Posi ⁇ tionierelement has a conical tip portion, as thus the core part in a simple way can be "impaled” and at the same time the smallest possible impression in the core part after removal of the positioning remains, whereby crawl ⁇ to the voltage spikes in the finished Schometalltechnik ⁇ piece can be kept low.
- the core part is reliably held in its predetermined position in the casting tool and at the same time leaves a relatively small impression in the core part or the light metal alloy enclosing the core part after the removal of the positioning element, if the cylindrical partial section has a diameter smaller than 3 mm, preferably less than 2 mm, in particular of substantially 1.6 mm.
- the conical section has an opening angle between 5 ° and 15 °, in particular of substantially 10 °.
- the pin-shaped positioning element has a fixing section which is larger than the cylindrical or conical section.
- the fastening section cuts to the front tip section opposite end of the pin-shaped Positionier ⁇ slightly tapered conically.
- the positioning element is fastened in a frictional engagement or via an adhesive connection in a recess of the casting tool.
- an adhesive connection instead of the frictional or adhesive connection, it is also possible to provide a screwed, soldered or welded connection or a form-fitting connection for fastening the positioning element in the casting tool.
- the casting tool comprises at least two molded parts movable relative to each other, wherein the pin-shaped positioning element in one movably mounted molding, preferably the upper molding, is attached.
- the pin-shaped positioning element in one movably mounted molding, preferably the upper molding, is attached.
- a movable core part support with at least one stop limiting the downward stroke of the movable molding part is provided.
- the core member pad When the core member pad is retractable in the fixed lower mold part, after the core member has been attached to the positioning member, the core pad can be easily removed from the mold.
- the core-part pad is mounted resiliently on a carrier, advantageously any inequalities when driving down the upper molded part can be compensated.
- the carrier of the core part pad is displaceably supported by means of centering pins in guides of a molded part.
- the method of the initially cited type is characterized in that a positioning element attached to the casting tool is introduced into the core part and the core part is frictionally held by the positioning element during casting and the positioning element is removed from the latter after completion of the workpiece ,
- the core part has a lower density than the light metal alloy, a workpiece which is comparatively light in comparison with a workpiece cast in one piece from the light metal alloy can be produced in a simple manner.
- the core part may consist in particular of metal foam, for example of aluminum foam, or also of a pressed body of porous silicate material, eg vermiculite, or the like.
- the core part has a higher density than the light metal alloy.
- the core part may in this case consist in particular of steel or the like.
- FIG. 1 shows a cross section of a part of a casting tool with a core part introduced therein
- FIG. 2 shows a detailed view of a pin-shaped positioning element
- Fig. 3 is a schematic view of a casting tool for the production of a light metal workpiece with insertion of a core part, which rests on a core part pad.
- Fig. 1 is partially a casting tool 1 for producing a light metal rim 2 can be seen, in which a core part 3 is provided, which has a lower density than thechtmetall ⁇ alloy, which is surrounded by the light metal alloy.
- the core part 3 could be made of metal foam, in particular of aluminum foam, or else of a porous body of silicate material, e.g. Vermiculite, or even consist of a steel ring or the like.
- the casting tool 1 is composed essentially of a movable mold top part 4 and a fixed body part 5 and lateral core slides 6.
- a core slide 6 for example, four quarter-circular individual parts may be present, which are displaced from the outside radially inwardly to bear against the lower part of the mold 5 when closing the casting tool 1.
- the upper mold part 4 has a recess 4 'in which a pin-shaped positioning element 7, which is preferably made of steel, is fastened by means of an adhesive bond. With the aid of the pin-shaped positioning element 7, the core part 3 is held in a predetermined position in the casting tool 1. th, so that the penetration of the light metal alloy into the casting tool, the core part 3 can be surrounded by the light metal alloy. After completion of the casting process, the movably mounted upper mold part 4 is again moved upwards and thus the pin-shaped positioning element 7 is pulled out of the core part 3 or the light metal alloy surrounding the core part.
- FIG. 2 shows the pin-shaped positioning element 7 in detail. It can be seen in particular that a conical tip section 8 is provided for easy penetration into the core part 3. In the embodiment shown, an opening angle ⁇ of approximately 20 ° is provided.
- a cylindrical section 9 then adjoins the tip section 8, which, as can be seen in FIG. 1, is likewise received in the interior of the core part 3 in the position penetrated into the core part 3.
- the cylindrical section 9 has the smallest possible diameter, wherein in the embodiment shown, a diameter of approximately 1.6 mm is provided.
- To the cylindrical portion 9 includes a conical section 10 with an opening angle ß of about 10 °.
- This conical section 10 is surrounded during the casting of the light metal workpiece, as shown in Fig. 1, of the light metal alloy and removed after completion of the Werk ⁇ piece of this.
- the fastening section 11 is slightly conical.
- To the Fastening portion 11 then includes an end portion 12, which has a smaller diameter relative to the attachment portion 11, so that reliably an adhesive between the end portion 12 and the recess 6 of the casting tool 1 can penetrate.
- FIG. 3 shows a schematic view of the casting tool 1, wherein in particular a carrier 14, which can be displaced vertically in the direction of the arrow 13, can be seen, which is mounted lowerable in the lower part 5 of the mold.
- a plate-shaped core part pad 15 is resiliently mounted to compensate for any inequalities when driving down the Kokillenoberteils 4 made ⁇ .
- Column-shaped projections 16 are provided on the core-part support 15, which serve to accommodate the desired distance to the mold top part 4, which is pushed downwards by means of a support plate 17, when the core part 3 is received.
- a measure is adjusted so that the pin-shaped positioning elements 7 (as in FIG. 1) reliably penetrate into the core portion 3, that is the core part 3 "impale '", predetermined to the core part 3 in a To hold position in the closed mold 1 after lowering the carrier 4 and the core part pad 15.
- ejection pins 19 are provided in a conventional manner, which are provided for separating the light metal workpiece from the mold top part 4.
- the casting tool according to the invention can also be used for the production of any other light metal workpieces with core parts remaining in the cast workpiece, for example for the production of wheel suspensions, longitudinal and transverse links, Fahr ⁇ stool parts, various types of struts and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Adornments (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0177104A AT500943B1 (de) | 2004-10-21 | 2004-10-21 | Giesswerkzeug zur herstellung von aus leichtmetallegierungen gegossenen werkstücken sowie verfahren hiezu |
PCT/AT2005/000411 WO2006042350A1 (de) | 2004-10-21 | 2005-10-17 | Giesswerkzeug und verfahren zur herstellung von aus leichtmetalllegierungen gegossenen werkstücken |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1802411A1 true EP1802411A1 (de) | 2007-07-04 |
EP1802411B1 EP1802411B1 (de) | 2008-03-12 |
Family
ID=35427626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05794467A Active EP1802411B1 (de) | 2004-10-21 | 2005-10-17 | Giesswerkzeug und verfahren zur herstellung von aus leichtmetalllegierungen gegossenen werkstücken |
Country Status (6)
Country | Link |
---|---|
US (2) | US7909084B2 (de) |
EP (1) | EP1802411B1 (de) |
AT (2) | AT500943B1 (de) |
DE (1) | DE502005003249D1 (de) |
ES (1) | ES2301062T3 (de) |
WO (1) | WO2006042350A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2949363A1 (fr) * | 2009-08-25 | 2011-03-04 | Peugeot Citroen Automobiles Sa | Broches pour fonderie sous pression |
WO2012172062A1 (de) * | 2011-06-17 | 2012-12-20 | E.G.O. Elektro-Gerätebau GmbH | Giesswerkzeug und verfahren zur herstellung eines giesswerkzeugs |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT500943B1 (de) * | 2004-10-21 | 2007-04-15 | Austria Alu Guss Ges M B H | Giesswerkzeug zur herstellung von aus leichtmetallegierungen gegossenen werkstücken sowie verfahren hiezu |
DE102007030342B4 (de) * | 2007-06-29 | 2010-10-07 | Trimet Aluminium Ag | Verfahren und Vorrichtung zum Druckgießen von gegliederten Metallgussstücken |
DE102008004023A1 (de) | 2008-01-11 | 2009-07-23 | Audi Ag | Verfahren und Vorrichtung zur Herstellung eines Gussteiles |
DE102009035702A1 (de) * | 2009-07-30 | 2011-02-03 | Benteler Automobiltechnik Gmbh | Fahrwerksbauteil für ein Kraftfahrzeug und Verfahren zur Herstellung |
DE102009054315A1 (de) * | 2009-11-24 | 2011-05-26 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Kraftfahrzeugbauteils |
AT510737B1 (de) * | 2010-12-02 | 2013-06-15 | Borbet Austria Gmbh | Verfahren zur herstellung eines gusswerkstücks, insbesondere eines gussrads |
DE102011077714A1 (de) | 2011-06-17 | 2012-12-20 | E.G.O. Elektro-Gerätebau GmbH | Gusskern für ein Gießverfahren und Verfahren zum Entfernen eines Gusskerns |
DE102011053857B3 (de) * | 2011-09-22 | 2013-03-07 | Preiss Metallwaren Gmbh & Co. Kg | Kernstütze zur Anordnung in einer verlorenen Gießform für ein Formelement und Verfahren zur Anwendung einer Kernstütze |
ITTO20120528A1 (it) * | 2012-06-18 | 2013-12-19 | 2A S P A | Metodo per la produzione di un articolo per pressofusione e inserto per pressofusione utilizzato in detto metodo. |
PL231589B1 (pl) * | 2015-03-24 | 2019-03-29 | Thoni Alutec Spolka Z Ograniczona Odpowiedzialnoscia | Sposób wytwarzania odlewów z stopów lekkich zbrojonych strefowo elementami metalowymi w formie wtopek, zwłaszcza w formach piaskowych i trwałych |
US10239118B2 (en) * | 2016-07-29 | 2019-03-26 | Nevis Industries Llc | Side frame center core construction and method |
CN106363134B (zh) * | 2016-08-30 | 2018-07-24 | 宁夏共享模具有限公司 | 用于垂直组芯的定位工装及定位方法 |
CN106890974A (zh) * | 2017-03-21 | 2017-06-27 | 珠海市润星泰电器有限公司 | 一种半固态压铸模具 |
Family Cites Families (15)
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US4258262A (en) | 1979-05-03 | 1981-03-24 | Bell Telephone Laboratories, Incorporated | High-power X-ray source |
JPS5614050A (en) * | 1979-07-13 | 1981-02-10 | Toyota Motor Corp | Core fixing method |
JPH01138050A (ja) * | 1987-11-24 | 1989-05-30 | Seiko Epson Corp | 時計ケース金型構造 |
JPH01241369A (ja) * | 1988-03-18 | 1989-09-26 | Tokai Rika Co Ltd | 鋳造方法 |
US4913217A (en) * | 1989-01-23 | 1990-04-03 | Farley, Inc. | Locators for expendable core in die casting die |
DE4201278A1 (de) * | 1992-01-18 | 1993-07-22 | Mahle J Wizemann Gmbh & Co Kg | Giessform und stuetze |
US5392841A (en) * | 1994-06-10 | 1995-02-28 | General Motors Corporation | Mounting expendable core in die cast die |
US5992500A (en) * | 1996-04-16 | 1999-11-30 | Cmi International, Inc. | Method of making a casting having a low density insert |
DE19754959C2 (de) | 1997-12-11 | 2001-05-17 | Porsche Ag | Rad für ein Kraftfahrzeug mit Hohlspeichen |
JP3252825B2 (ja) * | 1998-04-17 | 2002-02-04 | 日本電気株式会社 | 携帯電話における自動電波出力制限システム |
AU5525000A (en) | 1999-06-11 | 2001-01-02 | Dr. Ing H.C.F. Porsche Aktiengesellschaft | Wheel for a motor vehicle |
JP3233358B2 (ja) * | 2000-01-14 | 2001-11-26 | 日本軽金属株式会社 | パイプの鋳ぐるみ方法 |
AT409728B (de) * | 2000-03-09 | 2002-10-25 | Austria Alu Guss Ges M B H | Verfahren zum herstellen einer rad-gussfelge und giesswerkzeug hierfür |
FR2812572B1 (fr) * | 2000-07-21 | 2003-03-07 | Montupet Sa | Equipement de moulage de pieces de fonderies avec des moyens perfectionnes de positionnement de noyaux de sable, et procede de positionnement associe |
AT500943B1 (de) * | 2004-10-21 | 2007-04-15 | Austria Alu Guss Ges M B H | Giesswerkzeug zur herstellung von aus leichtmetallegierungen gegossenen werkstücken sowie verfahren hiezu |
-
2004
- 2004-10-21 AT AT0177104A patent/AT500943B1/de not_active IP Right Cessation
-
2005
- 2005-10-17 DE DE502005003249T patent/DE502005003249D1/de active Active
- 2005-10-17 EP EP05794467A patent/EP1802411B1/de active Active
- 2005-10-17 AT AT05794467T patent/ATE388777T1/de active
- 2005-10-17 WO PCT/AT2005/000411 patent/WO2006042350A1/de active IP Right Grant
- 2005-10-17 US US11/577,665 patent/US7909084B2/en active Active
- 2005-10-17 ES ES05794467T patent/ES2301062T3/es active Active
-
2011
- 2011-02-15 US US13/027,311 patent/US8127825B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2006042350A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2949363A1 (fr) * | 2009-08-25 | 2011-03-04 | Peugeot Citroen Automobiles Sa | Broches pour fonderie sous pression |
WO2012172062A1 (de) * | 2011-06-17 | 2012-12-20 | E.G.O. Elektro-Gerätebau GmbH | Giesswerkzeug und verfahren zur herstellung eines giesswerkzeugs |
Also Published As
Publication number | Publication date |
---|---|
DE502005003249D1 (de) | 2008-04-24 |
AT500943A1 (de) | 2006-05-15 |
US7909084B2 (en) | 2011-03-22 |
ATE388777T1 (de) | 2008-03-15 |
EP1802411B1 (de) | 2008-03-12 |
ES2301062T3 (es) | 2008-06-16 |
WO2006042350A1 (de) | 2006-04-27 |
US8127825B2 (en) | 2012-03-06 |
US20080087401A1 (en) | 2008-04-17 |
US20110132566A1 (en) | 2011-06-09 |
AT500943B1 (de) | 2007-04-15 |
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