US20080209852A1 - Joining Assembly and Method for Joining Components - Google Patents

Joining Assembly and Method for Joining Components Download PDF

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Publication number
US20080209852A1
US20080209852A1 US12/027,300 US2730008A US2008209852A1 US 20080209852 A1 US20080209852 A1 US 20080209852A1 US 2730008 A US2730008 A US 2730008A US 2008209852 A1 US2008209852 A1 US 2008209852A1
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US
United States
Prior art keywords
joining
components
assembly according
joining element
recess
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.)
Abandoned
Application number
US12/027,300
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English (en)
Inventor
Werner Guckert
Dirk Heuer
Robert Michels
Rainer Zeuss
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.)
SGL Carbon SE
Original Assignee
SGL Carbon SE
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 SGL Carbon SE filed Critical SGL Carbon SE
Publication of US20080209852A1 publication Critical patent/US20080209852A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them

Definitions

  • the invention relates to a joining assembly having a joining element for joining metallic, ceramic, polymeric and/or fiber-reinforced components, which have at least one flat joining surface with at least one recess and/or raised area with an undercut.
  • the invention further relates to a method for joining corresponding components.
  • Reversible joining elements are those joining elements distinguished as screw connections, such as screws and nuts or screws and mating threads, or clamp connections such as snap fasteners.
  • Irreversible joining elements include various types of rivets, which undergo an irreversible mechanical deformation in the production of a connection.
  • Snap connectors used especially to connect molded plastic components, occupy a certain position between those two, in which generally a projecting catch formed onto one joining piece is pressed into and locked in position in an undercut in the other joining piece.
  • a joining assembly comprising components to be joined.
  • the components are formed of at least one of metallic, ceramic, polymeric or fiber-reinforced materials, and the components have at least one joining surface with at least one recess and/or raised area with an undercut.
  • a joining element for joining the components is adapted in shape and size to the at least one recess and/or raised area of the components.
  • the joining element has at least one flexible rim area to be placed in a form-locking and force-locking connection with the at least one recess and/or raised area of the components.
  • a form-locking connection is one which connects two elements together due to the shape of the elements themselves, as opposed to a force-locking connection, which locks the elements together by force external to the elements.
  • the invention permits a joining of components.
  • the transmission of vibrations between the connected components can be effectively reduced, especially in the case of stresses that cause vibrations in the connected components.
  • the joining element is preferably made of metal, ceramic, polymer and/or a composite material, with the metal being selected from the group of noble steels, tool steels, case-hardening steels, construction steels, iron-cast alloys, hard metals and nonferrous metals such as aluminum, copper, platinum metals, tantalum and titanium.
  • ceramic is selected from the group of hard materials such as sintered alumina, SiC ceramic, silicon nitride ceramic and the hard material/metal/sintered composites (cermets), which are polymers selected from the group of industrial thermoplasts such as polyamide 6 (PA 6), polyamide 6.6 (PA 66), polyoxymethylene (POM) or duromers such as epoxide resins (EP), melamine-formaldehyde resins (MF) and unsaturated polyester resins (UP).
  • POM polyoxymethylene
  • duromers such as epoxide resins (EP), melamine-formaldehyde resins (MF) and unsaturated polyester resins (UP).
  • a composite material when used as the joining element, it is selected from the group of glass fiber-reinforced plastics (GFRP), carbon fiber-reinforced plastics (CFRP) and boron fiber-reinforced plastics (BFRP).
  • GFRP glass fiber-reinforced plastics
  • CFRP carbon fiber-reinforced plastics
  • BFRP boron fiber-reinforced plastics
  • the joining element is formed especially preferably of a graphite film having a thickness of from 0.25 mm to 3 mm, and the rim area thereof is encompassed by sheet steel.
  • the joining element is wavy or flat, and has a thickness of 0.10 mm to 5 mm, preferably 0.2 mm to 3 mm.
  • the joining element has a rotationally symmetrical shape.
  • the method comprises providing components to be joined, which are formed of at least one of metallic, ceramic or fiber-reinforced materials and have at least one flat joining surface and at least one recess and/or raised area with an undercut disposed at an angle of from 20° to 60° relative to the components.
  • a substantially flat joining element is adapted in size and shape to the at least one recess and/or raised area of the components.
  • the joining element has at least one flexible rim area. The rim area and the at least one recess and/or raised area of the components are pressed against one another into a form-locking and force-locking connection.
  • deformation takes place at room temperature on standard presses.
  • FIG. 1 is a diagrammatic, plan view of a first embodiment of a joining element according to the invention, in the form of a graphite film bordered by sheet steel;
  • FIG. 2 is a cross-sectional view of the joining element of the first embodiment
  • FIG. 3.1 is a cross-sectional view of two components joined by using a second embodiment of the joining element according to the invention, in the form of a wavy or corrugated ring;
  • FIG. 3.2 is an enlarged, cross-sectional view of a portion of FIG. 3.1 ;
  • FIG. 4.1 is a cross-sectional view of two components to be joined, with undercut recesses
  • FIG. 4.2 is an enlarged, cross-sectional view of a portion of FIG. 4.1 ;
  • FIG. 5 is a plan view of a component with an undercut recess.
  • FIG. 6 is a plan view of another component, with an undercut recess.
  • FIG. 1 there is seen a joining element 1 a formed of a graphite film 2 , which is bordered by sheet steel that forms a flexible rim area or edge region 3 .
  • FIG. 2 shows a cross-section through the joining element 1 a according to FIG. 1 .
  • FIG. 3.1 shows a joining element 1 b formed of a ring element that is wavy or corrugated in a radial direction and is inserted between two components 4 , 5 .
  • the component 4 is equipped with a recess 6
  • the component 5 is equipped with a raised area or elevation 7 and edges of the recess 6 and the raised area 7 are each equipped with a respective undercut 8 , 9 .
  • FIG. 3.2 shows an enlarged representation of a joining area of the components 4 , 5 .
  • the joining element 1 b engages with its outer peripheral edge into the undercut 8 of the component 4 and with its inner edge into the undercut 9 of the component 5 .
  • FIG. 4.1 shows a cross-sectional view of two additional components 10 , 11 to be joined.
  • FIG. 4.2 shows an enlarged partial section of FIG. 4.1 .
  • the components 10 , 11 to be joined have respective recesses 12 , 13 .
  • Respective rims 14 , 15 of the recesses 12 , 13 are equipped with respective undercuts 16 , 17 .
  • FIG. 5 shows a plan view of the component 10 to be joined, which is equipped with two circular recesses 12 .
  • FIG. 6 shows a plan view of the component 11 to be joined, which is equipped with a substantially rectangular recess 13 . It is seen that a transition between straight edges 18 , 19 of the rim 15 of the recess 13 follows a curved line 20 .
  • Circular disks having a diameter of 50 mm are stamped from a 2 mm thick graphite film 2 , which can have an internal sheet metal or fiber reinforcement.
  • An outer rim of the disks is sheathed in a 0.15 mm thick steel sheet, which covers a strip measuring approximately 3 mm in width, and is pressed-in far enough to ensure that a flush surface is created.
  • This joining element 1 a is placed between two components to be joined, each having circular depressions (recesses) 6 respectively measuring approximately 0.6 mm and 50 mm in diameter, with the edges 14 of the depressions being equipped with an undercut 8 of 45°.
  • the joining element 1 a is pressed on a standard press into the depressions 6 of the components to be joined, thereby producing a firm connection that serves to reduce vibrations in the joined components.
  • a joining element 1 b formed of a 0.2 mm steel sheet ring having an outer diameter of 50 mm and an inner diameter of 25 mm, is equipped with even waves or corrugations that extend in a radial direction.
  • An apparent thickness of the joining element 1 b measured between the wavy or corrugated ridges of the two sides, is approximately 0.5 mm.
  • This joining element 1 b is placed between two components 4 , 5 to be joined, which on one side have a circular depression 6 of approximately 0.4 mm with a diameter of 50 mm.
  • the depression rims 14 are equipped with an undercut 8 of 30°, and on the other side have an approximately 0.4 mm high, circular raised area 7 having a diameter of 25 mm.
  • the rim 19 of the raised area 7 also has an undercut 9 of 30°.
  • the joining element 1 b is pressed on a standard press with the components 4 , 5 to be joined, thereby producing a firm connection that serves to reduce vibrations in the joined components 4 , 5 , in which the surfaces of the joined components 4 , 5 that face one another after pressing can have a maximum distance of approximately 50-100 ⁇ m from one another.
  • a joining element formed of a 0.2 mm sheet steel ring having an outer diameter of 50 mm, has a U-shaped cross-section that faces the outer rim and an overall thickness of the joining element of approximately 1 mm.
  • This joining element is placed between two components to be joined, which have respective circular depressions of approximately 1 mm and 50 mm in diameter, with the depression edges being equipped with an undercut of 30°.
  • the joining element is pressed on a standard press into the depressions in the components to be joined, thereby producing a firm connection that serves to reduce vibrations in the connected parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Laminated Bodies (AREA)
US12/027,300 2007-02-07 2008-02-07 Joining Assembly and Method for Joining Components Abandoned US20080209852A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007006818A DE102007006818B4 (de) 2007-02-07 2007-02-07 Bauteilverbund
DE102007006818.4 2007-02-07

Publications (1)

Publication Number Publication Date
US20080209852A1 true US20080209852A1 (en) 2008-09-04

Family

ID=39363914

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/027,300 Abandoned US20080209852A1 (en) 2007-02-07 2008-02-07 Joining Assembly and Method for Joining Components

Country Status (4)

Country Link
US (1) US20080209852A1 (de)
EP (1) EP1956249A3 (de)
CN (1) CN101240808A (de)
DE (1) DE102007006818B4 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140345210A1 (en) * 2011-11-21 2014-11-27 Giuseppe Gentili Seismic dissipation module made up of compression-resistant spheres immersed in a variable low density material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010040547A1 (de) * 2010-09-10 2012-03-15 Bayerische Motoren Werke Aktiengesellschaft Bauteilverbindung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196847A (en) * 1938-11-29 1940-04-09 Certain Teed Prod Corp Covering element
US2736930A (en) * 1953-10-28 1956-03-06 John D Longley Door frame
US2969831A (en) * 1958-07-28 1961-01-31 Miller Herman Inc Side flexing shock mount
US3545795A (en) * 1969-01-07 1970-12-08 Heinrich Hertel Joint
US4958961A (en) * 1988-10-08 1990-09-25 Dyckerhoff & Widmann Aktiengesellschaft Anchoring arrangement for a rod-shaped tension member formed of fiber reinforced composite material
US5665187A (en) * 1992-04-03 1997-09-09 Turboflex Limited Method for connecting composite drive shaft to annular member
US6446979B1 (en) * 1999-07-09 2002-09-10 The United States Of America As Represented By The United States National Aeronautics And Space Administration Rocket motor joint construction including thermal barrier
US6991397B2 (en) * 2003-11-07 2006-01-31 Modular Systems, Inc. Dowel fastener and joints including same
US7140800B2 (en) * 2001-09-10 2006-11-28 Hitachi, Ltd. Joint structure for power transmitting member and method for producing the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172084B (en) * 1985-03-05 1988-05-25 South Western Ind Res Pistons
FR2603341B1 (fr) * 1986-08-29 1990-09-14 Europ Propulsion Culasse de moteur thermique ceramisee
DE9413143U1 (de) * 1994-07-28 1994-10-06 Mischler GmbH, 66763 Dillingen Verbindungsvorrichtung zum unsichtbaren Verbinden zweier Bauelemente
DE29921961U1 (de) * 1999-12-14 2000-04-27 Nägele, Martin, 88212 Ravensburg Eckverbindung für plattenförmige Werkstoffe
DE10241574B4 (de) * 2002-09-07 2008-04-17 Rexroth Indramat Gmbh Schaltschrank mit wenigstens zwei Modulgehäusen, die über wenigstens ein Verbindungselement miteinander verbunden sind
GB2431614A (en) * 2005-10-26 2007-05-02 Robert Jackson Saw blade with releasably fastened cutting portion

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196847A (en) * 1938-11-29 1940-04-09 Certain Teed Prod Corp Covering element
US2736930A (en) * 1953-10-28 1956-03-06 John D Longley Door frame
US2969831A (en) * 1958-07-28 1961-01-31 Miller Herman Inc Side flexing shock mount
US3545795A (en) * 1969-01-07 1970-12-08 Heinrich Hertel Joint
US4958961A (en) * 1988-10-08 1990-09-25 Dyckerhoff & Widmann Aktiengesellschaft Anchoring arrangement for a rod-shaped tension member formed of fiber reinforced composite material
US5665187A (en) * 1992-04-03 1997-09-09 Turboflex Limited Method for connecting composite drive shaft to annular member
US6446979B1 (en) * 1999-07-09 2002-09-10 The United States Of America As Represented By The United States National Aeronautics And Space Administration Rocket motor joint construction including thermal barrier
US7140800B2 (en) * 2001-09-10 2006-11-28 Hitachi, Ltd. Joint structure for power transmitting member and method for producing the same
US6991397B2 (en) * 2003-11-07 2006-01-31 Modular Systems, Inc. Dowel fastener and joints including same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140345210A1 (en) * 2011-11-21 2014-11-27 Giuseppe Gentili Seismic dissipation module made up of compression-resistant spheres immersed in a variable low density material

Also Published As

Publication number Publication date
DE102007006818A1 (de) 2008-08-21
EP1956249A3 (de) 2010-06-16
DE102007006818B4 (de) 2008-11-13
EP1956249A2 (de) 2008-08-13
CN101240808A (zh) 2008-08-13

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