EP3229990A1 - Werkzeug zum umformen und / oder partiellen presshärten eines werkstücks und verfahren zum umformen und / oder partiellen presshärten eines werkstücks - Google Patents
Werkzeug zum umformen und / oder partiellen presshärten eines werkstücks und verfahren zum umformen und / oder partiellen presshärten eines werkstücksInfo
- Publication number
- EP3229990A1 EP3229990A1 EP15790076.2A EP15790076A EP3229990A1 EP 3229990 A1 EP3229990 A1 EP 3229990A1 EP 15790076 A EP15790076 A EP 15790076A EP 3229990 A1 EP3229990 A1 EP 3229990A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- heat
- workpiece
- conduction system
- heat conduction
- 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.)
- Withdrawn
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D37/16—Heating or cooling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
Definitions
- the present invention relates to a tool for forming and / or partial press hardening of a workpiece and to a method for forming and / or partial press hardening of a workpiece.
- tempered tools are used to locally reduce the cooling rate. Due to the reduced cooling rate, an improved ductility is set locally on the workpiece treated in this way.
- local tool surface temperatures of more than 400 ° C, preferably between 500 ° C and 550 ° C, sought.
- Even light metals, such as aluminum and magnesium, are formed in tempered tools at temperatures of more than 150 ° C.
- electrically operated heating cartridges are used for local temperature control of the tools, which emit their heat energy directly into the tool steel.
- high temperature differences of more than 200 ° C along the surface can arise, which are contrary to the general interest in homogeneous heating of the surface.
- the different temperatures lead to different cooling rates in the material of the workpiece and thus to different strengths in the finished workpiece.
- maintenance on the tool at regular intervals require that the heating cartridges are replaced.
- the heating cartridges are inserted with fit into the tool, frequently occur due to the high temperatures cohesive connections between the heating element and the tool, whereby a detachment of the heating element from the tool is difficult.
- the present object is achieved by a tool for forming and / or partial press hardening of a workpiece, wherein the tool comprises at least in the tempered region a base body with a surface and a heat conduction with a liquid thermal medium, wherein the heat conduction is integrated into the tool such that for heating the surface, a heat emanating from a heat source is conducted via the heat conduction system to the surface of the base body, characterized in that the heat conduction system comprises a thermal oil or a melt as the thermal medium.
- the tool according to the invention has the advantage of the thermal oil or the melt, for example molten salt or a zinc-containing melt, for. B. fine zinc melt (Zamak), which is arranged in the heat conduction system or is in a closed system.
- the thermal oil or the melt By the use of the thermal oil or the melt, a uniform heat distribution within the liquid thermal medium can be achieved, whereby this uniform heat distribution in the liquid thermal medium advantageously ensures that the heat conduction system uniformly warms the surface (closed system).
- the banksleitsys- tem ensures that the positioning of the heat source can be advantageously made more flexible, since it is no longer absolutely necessary to position the heat source immediately in the vicinity of the surface.
- the forming is preferably a hot forming and / or partial press hardening and the heated surface is intended for forming and for partially setting a higher ductility in the workpiece.
- the surface has an operating temperature of at least 400 ° C, preferably an operating temperature between 500 ° C and 550 ° C, on.
- the tool is preferably used in "tailored tempering" in order to provide different tool segments, each with a homogeneous heat distribution, the different tool segments differing in their respective temperatures, thereby advantageously further improving the quality of the finished workpieces
- the heating source is a heating cartridge, which is preferably in direct or indirect contact with the heat conduction system,
- the heating source is arranged in the tool without contact to the main body.
- the heated surface of the tool has an operating temperature of more than 150 ° C., in particular more than 200 ° C.
- the heating source is arranged within the heat conduction system.
- the heat source is surrounded or lapped by the thermal oil or the melt.
- the heated surface faces the workpiece during forming of the workpiece.
- the surface comes into contact with the workpiece during forming.
- the surface forms part of a die or a stamp and / or has a surface profile.
- the heat conduction system comprises a main channel, wherein the main channel extends substantially parallel to the surface.
- the main channel extends substantially flat immediately below the surface.
- the main channel preferably follows the course of the surface profile.
- the distance of the heat conduction system to the main channel is substantially constant.
- the heat conduction system comprises a plurality of supply channels, which are in fluid communication with the main channel. It is preferably provided that a plurality of heat sources are arranged in the supply channels. In particular, it is provided that at least one heating source is provided for each supply channel. Furthermore, the supply channels are preferably arranged at regular intervals from one another.
- the main channels and / or supply channels are designed as recesses in the main body. For example, one of these recesses is formed by a bore and / or a milled groove.
- the thermal medium is arranged statically in the heat conduction system or the thermal conduction system is flowed through by the thermal medium.
- the tool comprises a base plate, wherein a gap between the base plate and the base plate body forms the heat conduction system.
- a heating source is arranged on the base plate.
- the plurality of heat sources is arranged on the base plate such that the individual heat sources protrude into the supply channels. For example, the multiplicity of heat sources can then be removed from the tool without great effort by detaching the base plate with the multiplicity of heat sources from the base body. This further facilitates the performance of the maintenance work.
- Another object of the present invention is a method for forming and / or partial press hardening of a workpiece with a tool according to the invention.
- Another object of the present invention is a method for exchanging a heat source from a tool according to the invention.
- FIG. 1 shows a tool according to an exemplary embodiment of the present invention.
- the tool 1 shows a tool 1 according to an exemplary embodiment of the present invention. It is preferably provided that it is a tool 1 for forming, in particular hot forming and / or partial press hardening.
- the tool 1 workpieces (not shown here) made of a manganese-boron steel or a composite material, in particular TriBond shaped.
- the tool 1 comprises a base body 2, on whose side facing a workpiece a surface 6 can be found, which comes into contact with the workpiece during forming. It is further provided that this surface 6 of the tool 1 an operating temperature of more than 400 ° C, in particular an operating temperature between see 500 ° C and 550 ° C, when the workpiece is deformed or formed by the tool 1.
- the tool next to the main body 2 has a base plate 5 and formed by the arrangement of the base plate 5 and the base body 2, a gap.
- the preferred filling of this gap with a thermal oil or a melt (molten salt) gives the intermediate space the functionality of a heat conducting system 3, which conducts a heat emanating from a heat source 4 to the surface 6.
- the heat conduction system 3 comprises a main channel 7, which extends substantially parallel to the surface 6 of the base body 2, in particular flat, and particularly preferably extends directly below the surface 6.
- the distance of the main channel from the surface 6 is preferably less than 6 cm, preferably less than 4 cm and particularly preferably less than 2 cm.
- the heat conduction system 3 is designed like a rib.
- the heat conduction system 3 comprises a plurality of supply channels 8, which are each in fluid communication with the main channel 7.
- the heat sources 4 are arranged within the supply channels 8.
- the heat sources 4 are mounted directly on the base plate 5 and / or the heat sources 4 of the thermal oil or the melt (molten salt) directly surrounded, in particular lapped are (closed system).
- the heat source 4 is preferably arranged contactlessly relative to the base body 2 on the tool 1.
- the base plate 5 is detached from the base body 2.
- the base plate 5 is detachably attached to the base body 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014118416.5A DE102014118416B4 (de) | 2014-12-11 | 2014-12-11 | Werkzeug zum Umformen und/oder partiellen Presshärten eines Werkstücks |
| PCT/EP2015/075149 WO2016091454A1 (de) | 2014-12-11 | 2015-10-29 | Werkzeug zum umformen und / oder partiellen presshärten eines werkstücks und verfahren zum umformen und / oder partiellen presshärten eines werkstücks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3229990A1 true EP3229990A1 (de) | 2017-10-18 |
Family
ID=54396858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15790076.2A Withdrawn EP3229990A1 (de) | 2014-12-11 | 2015-10-29 | Werkzeug zum umformen und / oder partiellen presshärten eines werkstücks und verfahren zum umformen und / oder partiellen presshärten eines werkstücks |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10413955B2 (de) |
| EP (1) | EP3229990A1 (de) |
| CN (1) | CN107000019B (de) |
| CA (1) | CA2967511C (de) |
| DE (1) | DE102014118416B4 (de) |
| WO (1) | WO2016091454A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014118416B4 (de) * | 2014-12-11 | 2017-02-23 | Thyssenkrupp Ag | Werkzeug zum Umformen und/oder partiellen Presshärten eines Werkstücks |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US81047A (en) * | 1868-08-11 | Caleb whitmorb | ||
| JP2549625B2 (ja) | 1986-05-19 | 1996-10-30 | 株式会社東芝 | カラ−受像管用シヤドウマスクの温間成形装置 |
| FR2842753B1 (fr) | 2002-07-26 | 2005-03-11 | Financ D Etudes Et De Dev Ind | Procede de realisation d'un outil destine au formage d'une matiere et outil susceptible d'etre realise par ce procede |
| US7159437B2 (en) | 2004-10-07 | 2007-01-09 | General Motors Corporation | Heated die for hot forming |
| DE102005018240B4 (de) | 2005-04-19 | 2010-11-18 | Benteler Automobiltechnik Gmbh | Vorrichtung zum Umformen von Metallblechen |
| JP2007190563A (ja) * | 2006-01-17 | 2007-08-02 | Atsuta Seiki Kk | 金型 |
| DE102008035023A1 (de) * | 2008-07-25 | 2010-02-18 | Creative Balloons Maschinenbau Gmbh & Co. Kg | Formwerkzeug zur Herstellung von Ballon- oder Hohlkörpern aus einem schlauchförmigen Rohling oder Extrudat durch Blasformung |
| DE102009045597B3 (de) * | 2009-10-12 | 2011-01-27 | Voestalpine Automotive Gmbh | Vorrichtung zum Herstellen gehärteter Stahlbauteile |
| DE102010027554A1 (de) * | 2010-07-19 | 2012-01-19 | Thyssenkrupp Umformtechnik Gmbh | Umformwerkzeug und Verfahren zum Warmumformen und partiellen Presshärten eines Werkstückes aus Stahlblech |
| CN103597107B (zh) * | 2011-06-10 | 2016-06-22 | 株式会社神户制钢所 | 热压成形品、其制造方法和热压成形用薄钢板 |
| CN202336541U (zh) | 2011-11-28 | 2012-07-18 | 古河奇宏电子(苏州)有限公司 | 导热管用成型模具 |
| DE102012210958A1 (de) * | 2012-06-27 | 2014-04-03 | Bayerische Motoren Werke Aktiengesellschaft | Gekühltes Werkzeug zum Warmumformen und/oder Presshärten eines Blechmaterials sowie Verfahren zur Herstellung einer Kühleinrichtung für dieses Werkzeug |
| CN203304430U (zh) | 2013-05-27 | 2013-11-27 | 沈阳鑫科能源技术有限公司 | 一种热压模具的加热设备 |
| CN105899306B (zh) * | 2014-02-24 | 2018-09-07 | 宝马股份公司 | 用于对工件进行造型加工的成形模具以及用于在成形模具上设置调温装置的方法 |
| DE102014221997A1 (de) * | 2014-10-29 | 2016-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Formwerkzeug zur Herstellung von warmumgeformten Bauteilen |
| DE102014118416B4 (de) * | 2014-12-11 | 2017-02-23 | Thyssenkrupp Ag | Werkzeug zum Umformen und/oder partiellen Presshärten eines Werkstücks |
| EP3072980B1 (de) * | 2015-03-26 | 2018-02-14 | weba Werkzeugbau Betriebs GmbH | Verfahren und vorrichtung zur herstellung eines partiell gehärteten formteils |
-
2014
- 2014-12-11 DE DE102014118416.5A patent/DE102014118416B4/de not_active Expired - Fee Related
-
2015
- 2015-10-29 US US15/533,832 patent/US10413955B2/en not_active Expired - Fee Related
- 2015-10-29 CA CA2967511A patent/CA2967511C/en not_active Expired - Fee Related
- 2015-10-29 CN CN201580067993.7A patent/CN107000019B/zh not_active Expired - Fee Related
- 2015-10-29 EP EP15790076.2A patent/EP3229990A1/de not_active Withdrawn
- 2015-10-29 WO PCT/EP2015/075149 patent/WO2016091454A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016091454A1 (de) | 2016-06-16 |
| CN107000019B (zh) | 2020-04-24 |
| DE102014118416B4 (de) | 2017-02-23 |
| CA2967511C (en) | 2020-03-10 |
| US20170320121A1 (en) | 2017-11-09 |
| DE102014118416A1 (de) | 2016-06-16 |
| CN107000019A (zh) | 2017-08-01 |
| CA2967511A1 (en) | 2016-06-16 |
| US10413955B2 (en) | 2019-09-17 |
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