EP2723518B1 - Maschine und verfahren zur zusammensetzung eines musters mit einer einwegform und entsprechendes formverfahren - Google Patents

Maschine und verfahren zur zusammensetzung eines musters mit einer einwegform und entsprechendes formverfahren Download PDF

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Publication number
EP2723518B1
EP2723518B1 EP12731068.8A EP12731068A EP2723518B1 EP 2723518 B1 EP2723518 B1 EP 2723518B1 EP 12731068 A EP12731068 A EP 12731068A EP 2723518 B1 EP2723518 B1 EP 2723518B1
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EP
European Patent Office
Prior art keywords
adhesive
bonding
strata
support
pattern
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.)
Active
Application number
EP12731068.8A
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English (en)
French (fr)
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EP2723518B8 (de
EP2723518A2 (de
Inventor
Mario Dufloux
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
GM Global Technology Operations LLC
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.)
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Publication date
Application filed by Peugeot Citroen Automobiles SA, GM Global Technology Operations LLC filed Critical Peugeot Citroen Automobiles SA
Publication of EP2723518A2 publication Critical patent/EP2723518A2/de
Publication of EP2723518B1 publication Critical patent/EP2723518B1/de
Application granted granted Critical
Publication of EP2723518B8 publication Critical patent/EP2723518B8/de
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B22C7/023—Patterns made from expanded plastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B22C7/023—Patterns made from expanded plastic materials
    • B22C7/026—Patterns made from expanded plastic materials by assembling preformed parts

Definitions

  • the present invention relates to a laminate bonding machine of a model for a lost pattern molding process.
  • the invention further relates to an assembly method comprising the use of the preceding machine and a molding method comprising assembly according to such a method.
  • the technology of the lost model molding process uses an intermediate called model for obtaining castings.
  • the model for example polystyrene, is destroyed during the implementation of such a method, that is to say that one "loses” the model to obtain the desired casting part.
  • the geometry of the desired casting part corresponds to the geometry of the lost model.
  • the lost pattern molding process is indifferently referred to as "lost pattern method" or "PMP".
  • the lost model can consist of an assembly of strata.
  • the lost models of cylinder heads of an internal combustion engine can be formed by the assembly of four or five layers.
  • the figure 1 shows a schematic view of an assembly of two layers 40 and 60 using a bonding tool 20.
  • This bonding tool 20 is conventionally composed of two supports 24 and 26 each carrying a stratum of the model, respectively 40 and 60. These two supports 24 and 26 are adapted to be moved towards one another in a gluing direction, here the vertical direction. The displacement of the two supports 24 and 26 towards each other allows the bonding of the layers 40 and 60 carried by the two supports.
  • the bonding joint is represented by a bold line referenced 22.
  • the figure 2 shows a profile view of a model 50 obtained after gluing assembly of the two layers 40 and 60.
  • Each stratum 40 or 60 composing the model is previously obtained by molding in an injection cavity. Each stratum 40 or 60 is therefore derived from a mold formed by two half-impressions.
  • the Figures 3A and 3B represent half-impressions 80 and 82 of the same mold for obtaining a stratum of a lost breech model.
  • the figures 1 and 2 show connection joints of mold half-impressions when obtaining the different strata 40 and 60. According to the figure 1 the stratum 40 thus has a connection joint 44 while the stratum 60 has a connection joint 66.
  • the layer may comprise variations related to the closing clearance of the half-impressions 80 and 82.
  • figure 4 shows a diagram of the assembly of the stratum 40 with a stratum 60 whose obtaining by molding has caused a variation of geometry along the connection joint 66. The consequences of this variation can lead to a bad match at the joint of collage of strata.
  • the figure 5 shows the creation of a leakage zone at the seam 22 between the bonding surface 46 of the stratum 40 and the corresponding bonding surface 64 of the stratum 60.
  • the figure 6 shows the bonding joint between the stratum 40 and the stratum 60 in the absence of leakage zone. After bonding all the strata, such variations can accumulate because of the stacking of the strata.
  • gluing tools or assembly machines by bonding layers, which provide a three-dimensional adjustment and prior to the respective position of the supports.
  • Such a three-dimensional adjustment is commonly referred to as "X, Y and Z adjustment".
  • Such an adjustment makes it possible to bring the shapes of the strata into conformity with the level of the bonding joint 22.
  • the seal can assume complex shapes and present, for example, inverse slopes.
  • the setting of the tools is performed, prior to gluing, with respect to a model lot. To take into account the dispersion with respect to subsequent batches, a new adjustment is made to adapt to the variations of the layers. This resumption of the settings for each lot makes it more difficult to obtain a lost model using such tools.
  • the right part of the model formed by the strata 40 and 60 can then be subjected to a compressive stress, that is to say to an excessive tightening, (represented by a "+”) of the bonding surfaces 46 and 64 then that the left part of the same model can be subjected to a tensile stress (represented by a "-”) after the bonding of the two layers.
  • a compressive stress that is to say to an excessive tightening, (represented by a "+") of the bonding surfaces 46 and 64 then that the left part of the same model can be subjected to a tensile stress (represented by a "-”) after the bonding of the two layers.
  • the self-centering members allow a clearance of -0.5 mm to +0.5 mm in at least one direction contained in the plane orthogonal to the gluing direction, preferably in all the directions contained in the plane. orthogonal to the gluing direction.
  • the machine comprises, in addition to the self-centering members, nominal adjustment members of a respective positioning of the first support and the second support in the plane orthogonal to the gluing direction.
  • the machine comprises a frame on which the first and second supports are mounted, the self-centering members being arranged only between the frame and one of the first support and the second support.
  • the first layer has a bonding surface intended to be bonded to a bonding surface of the second layer, the bonding surfaces of the first and second layers having slopes inclined at an angle greater than 10 °, preferably greater than 15 ° with respect to a plane orthogonal to the gluing direction.
  • the adhesive has a Brookfield viscosity of between 700 and 1800 mPa.s at the bonding temperature, preferably a viscosity Brookfield between 1000 and 1500 mPa.s, the bonding temperature being preferably between 110 ° C and 130 ° C.
  • the layers are obtained by injection of polystyrene into molds.
  • the invention further provides a lost model molding method comprising assembling a model for lost pattern casting according to the preceding method, the assembled model being preferably a cylinder head of an internal combustion engine.
  • the proposed machine comprises a first support 24 and a second support 26.
  • the first support 24 allows the support of a first layer 40 of the model 50
  • the second support 26 allows the support of a second layer 60 of the model 50.
  • the first and second supports 24 and 26 are adapted to be moved towards each other, in a gluing direction to glue the first and second layers 40 and 60 together.
  • the machine 20 further comprises self-centering members of the strata 40 and 60. This self-centering takes place during the assembly position of the strata 40 and 60.
  • the assembly position of the strata corresponds to the displacement of the first and second supports 24 and 26 towards each other to glue the layers together.
  • Self-centering is provided by the self-centering members which provide respective freedom of movement of the supports 24 and 26 between them in a plane orthogonal to the direction of bonding.
  • This freedom of movement allows a matching of strata without constraint (the matching corresponds to the English word "compliance").
  • the absence of stress prevents the deterioration of the layers of the model for example made of polystyrene which is a fragile material.
  • the self-centering members further ensure an automatic adjustment of the position of one of the two supports relative to the other to ensure a bonding of the layers 40 and 60 devoid of leakage area at the bonding joint 22.
  • the slopes of the bonding joint 22 correspond to slopes inclined relative to the plane orthogonal to the bonding direction of the layers.
  • the slopes in the bonding joint 22 correspond to corresponding slopes presented by the bonding surface 46 of the first layer 40 and by the bonding surface 64 of the second layer 60.
  • the slopes may be inclined at an angle greater than 10 ° or preferably greater than 15 °.
  • strata 40 and 60 are positioned by sliding the layers one over the other through the slopes as well as the entire geometry of the bonding joint 22. This sliding occurs when the first and second supports 24 and 26 arrive at the end of the race of their displacement towards each other according to the direction of collage.
  • the proposed machine allows a simple assembly independently of the possible variations of geometry of the layers.
  • the invention allows assembly by bonding strata of a lost model that is less complex and more accurate to variations within the same batch of strata and between different batches of strata.
  • the machine causes a decrease in the number of model rejects related to a bad bond.
  • the machine 20 Because of the presence of the self-centering members, the machine 20 itself provides the desired function which allows the matching of the layers subsequently supported by the supports 24 and 26. Thus the machine 20, that is, ie the bonding tooling, directly integrates the self-centering solution without special preparation of the strata to be glued, or setting specific to each stratum.
  • This machine 20 can be advantageously used in a method of assembling by bonding the layers of a PMP model.
  • the invention also relates to such a method of assembling by bonding layers of a PMP model, thereby obtaining the above advantages.
  • Such a method comprises the prior implementations of the first layer 40 and the second layer 60 of the model 50 on the first support 24 and the second support 26 respectively.
  • the machine 20 proposed can indeed be originally completely devoid of strata 40 and 60.
  • the proposed method then comprises providing a glue for assembling strata 40 and 60 at a gluing temperature.
  • the adhesive may for example be provided via a sizing mask (not shown) disposed between the first and second layers 40 and 60.
  • the bonding temperature is chosen according to the hot melt nature of the adhesive to obtain a viscosity glue that allows the sliding without stresses 40 and 60 layers on each other.
  • the glue used may have a Brookfield viscosity of between 700 and 1800 mPa.s at the bonding temperature.
  • the adhesive used has a Brookfield viscosity of between 1000 and 1500 mPa.s at the bonding temperature.
  • Such an adhesive corresponds, for example, to the adhesive sold under the name SWIFTHERM 607 by forbo adhesives and having a Brookfield viscosity of 1800 mPa.s at 100 ° C., 1250 mPa.s at 120 ° C. and 700 mPa.s at 140 ° C. ° C.
  • the bonding temperature is preferably between 110 ° C and 130 ° C, more particularly the bonding temperature may be 120 ° C. In general, the bonding temperature can be between 110 ° C. and 130 ° C.
  • the method then comprises bonding the first and second layers 40 and 60 by respective displacement of the supports 24 and 26 in the gluing direction.
  • the assembly machine and the assembly method are particularly advantageous for the strata obtained by injection into molds, such as the molds illustrated by the Figures 3A and 3B .
  • strata 40 and 60 may have dimensional variations at the connection joint 44 or 66, as previously mentioned.
  • These dimensional variations which are in the manufacturing tolerance range of the strata 40 and 60, are automatically taken into account by the proposed self-centering, which makes it possible to avoid the bonding of the layers with a zone of leak and an area of too much compression of the model.
  • the proposed self-centering avoids the accumulation of tolerances of each stratum because of their stacking.
  • the machine may comprise, in addition to the self-centering members, nominal adjustment members of a respective positioning of the first support and the second support in the plane orthogonal to the gluing direction.
  • the layers 40 and 60 can be obtained by injection of polystyrene.
  • SWIFTHERM 607 glue is particularly advantageous for the assembly of polystyrene layers according to the proposed method.
  • the assembly of the strata makes it possible to obtain a lost breech model as illustrated by FIG. figure 2 .
  • the invention further relates to a lost model molding method comprising the previous method of assembling the lost model.
  • the molding process preferably makes it possible to obtain an internal combustion engine cylinder head.
  • the use of rolling balls makes it possible to obtain a very sensitive self-centering mechanism by opposing only a minimum of friction.
  • the set of rolling balls can be likened to a "bed" of rolling balls.
  • An unbalanced bonding surface corresponds, for example, to a bonding surface having more slopes oriented to the right than slopes oriented to the left. Because of the greater number of right-hand slopes, the setting of the strata into position can tend, by reaction, to a left-to-left mapping.
  • the orientation of the pair of pushers 38 in two different directions in the same direction makes it possible to rebalance the matching of the strata 40 and 60 during their assembly.
  • the self-centering devices described with reference to the figure 7 allow a clearance of - 0.5mm to + 0.5mm in at least one direction contained in the plane orthogonal to the gluing direction. It is advantageous if the clearance from -0.5 mm to +0.5 mm is possible in all the directions contained in the plane orthogonal to the gluing direction.
  • the clearance allowed by the self-centering members is adapted to the maximum tolerance related to obtaining the layers by molding, in particular by molding in two half-injection impressions.
  • the self-centering members may comprise at least two pairs of spring plungers, each pair of spring plungers being oriented in two different directions of the plane orthogonal to the gluing direction.
  • the self-centering members are only arranged between the second support 26 and the frame (not shown). Thus no self-centering member is disposed between the first support 24 and the frame.
  • an intermediate support 28 may be provided between the self-centering members of the second support 26 and the frame. This intermediate support 28 allows in particular the nominal adjustment of a respective positioning of the first support and the second support in the plane orthogonal to the gluing direction. All formed by the support 26 and the intermediate support 28 corresponds to a deposition shaper because it is intended to be arranged in the lower part of the machine 20, when the gluing direction is vertical.
  • the figure 8 shows a perspective view of the support 24 of an assembly machine 20 according to another embodiment of the self-centering members.
  • the self-centering members are only arranged between the first support 24 and the frame.
  • an intermediate support 84 may be provided between the self-centering members of the first support 24 and the frame.
  • the use of the intermediate support 84 between the self-centering members of the first support 24 and the frame allows the nominal adjustment of the first and second supports in the plane orthogonal to the direction of bonding .
  • the assembly formed by the support 24 and the intermediate support 84 corresponds to a gripper shaper or gripper because it is intended to be arranged in the upper part of the machine 20, when the bonding direction is vertical.
  • Part of the self-centering members is formed by at least one axis 70 of self-centering.
  • the self-centering members comprise four self-centering pins 70 each arranged at a corner of the first support 24.
  • the figure 9 shows a sectional view, according to the hatched plane P, of the first support 24 and the intermediate support 84. This view corresponds to a section in the plane of the line L of the figure 8 .
  • the figure 9 cut the support 24 and the support 84 at the axis 70 of self-centering.
  • the Figures 10A and 10B show a perspective view and an exploded perspective view of the previous self-centering axis 70.
  • the axis 70 is composed of two sets of rolling balls. These two sets of balls 30 are each held by a cage 72. These sets of balls are also each trapped in a cavity delimited in part by the part 86. On one side the part 86 defines a cavity with the plate 74, and on the other hand, the part 86 defines a cavity with the washer 76. Each of the sets of balls 30 can to slide freely in the plane orthogonal to the gluing while being guided by the piece 86 on the one hand and one of the pieces among the plate 74 and the washer 76 on the other hand.
  • the part 86 is fixed to the intermediate support 84 by means of a nut 88 while the plate 74 and the washer 76 are secured to the first support 24, for example by means of screws 78.
  • the proposed axis 70 allows displacement in all directions contained in the plane orthogonal to the gluing direction.
  • the self-centering members further comprise a spring loaded plunger support at each corner of the support 24.
  • These four spring plunger supports are not visible in figure 8 .
  • Figures 11A and 11B shows a perspective view and an exploded perspective view of such a support 32 spring loaded.
  • the spring loaded pushers 38 are then received in bores of the support 32 of spring pushers.
  • the first support 24 comprises four pairs of spring plungers distributed in two different directions of the plane orthogonal to the bonding. Two pairs of spring plungers distributed in two different directions may suffice, as previously described with reference to the embodiment of the invention. figure 7 .
  • a greater number of pairs of pushers contributes to the stability of the machine 20. In all cases, for a pair of pushers oriented in the same direction, each push of the pair is preferably oriented in a different direction as previously described.
  • the spring pushers 38 may be chosen at least from the spring pushers 38 with balls or with fingers.
  • the Figures 12A and 12B show cross-sectional views of these two spring pusher embodiments.
  • the figure 12A shows a spring pusher 38 of diameter d1 with finger 34 of diameter d3. This finger plunger 34 allows for example a deflection w2 from 0 to 0.5 mm.
  • the figure 12B shows a spring plunger 38 of diameter d1 with ball 36 of diameter d2. This ball pusher 36 allows for example a deflection w1 from 0 to 0.5 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Claims (10)

  1. Maschine zum Zusammenfügen durch Kleben von Schichten eines Musters für Formverfahren mit Einwegform, wobei die Maschine (20) Folgendes umfasst:
    • einen ersten Träger (24) einer ersten Schicht (40) des Musters (50);
    • einen zweiten Träger (26) einer zweiten Schicht (60) des Musters (50);
    wobei der erste und der zweite Träger (24, 26) angepasst sind, um zueinander in eine Kleberichtung verlagert zu werden, um die erste und die zweite Schicht (40, 60) zusammenzukleben,
    Zusammenfügemaschine (20) dadurch gekennzeichnet, dass sie Selbstzentrierungsorgane der Schichten (30, 38, 70) beim Zusammenfügepositionieren der Schichten (40, 60) in einer Ebene orthogonal zu der Kleberichtung umfasst.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Selbstzentrierungsorgane (30, 38, 70) einen Ausschlag von -0,5 mm bis +0,5 mm in mindestens eine Richtung erlauben, die in einer Ebene orthogonal zu der Kleberichtung enthalten ist, vorzugsweise in alle Richtungen, die in der Ebene orthogonal zu der Kleberichtung enthalten sind.
  3. Maschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sie zusätzlich zu den Selbstzentrierungsorganen (30, 38, 70) Nenneinstellungsorgane einer Positionierung bezüglich des ersten Trägers (40) und des zweiten Trägers (60) in der Ebene orthogonal zu der Kleberichtung umfasst.
  4. Maschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Selbstzentrierungsorgane (30, 38, 70) Folgendes umfassen:
    • einen Satz Lagerkugeln (30), der eine Bewegung in mindestens eine Richtung, die in der Ebene orthogonal zu der Kleberichtung enthalten ist, erlaubt;
    • ein Paar Federstößel (38), das entlang derselben Bewegungsrichtung wie der Satz Kugeln (30) ausgerichtet ist, wobei die Stößel (38) des Paars jeweils entlang einer unterschiedlichen Richtung ausgerichtet sind.
  5. Maschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie einen Rahmen umfasst, auf dem der erste und der zweite Träger (40, 60) montiert sind, wobei die Selbstzentrierungsorgane (30, 38, 70) nur zwischen dem Rahmen und dem ersten Träger (40) oder dem zweiten Träger (60) angeordnet sind.
  6. Zusammenfügeverfahren durch Kleben von Schichten eines Musters für Formverfahren mit Einwegform, Verfahren dadurch gekennzeichnet, dass es die Verwendung einer Zusammenfügemaschine (20) nach einem der Ansprüche 1 bis 5 umfasst, wobei das Verfahren außerdem Folgendes umfasst:
    • Anbringungsvorgänge einer ersten Schicht (40) und einer zweiten Schicht (60) eines Musters (50) jeweils auf dem ersten Träger (24) und dem zweiten Träger (26);
    • Zuführen eines Zusammenfügeklebstoffs der Schichten (40, 60) mit einer Klebetemperatur, wobei der Klebstoff zum Beispiel mittels einer Beleimungsmaske, die zwischen der ersten und der zweiten Schicht (40, 60) angeordnet ist, zugeführt wird;
    • Kleben der ersten und zweiten Schicht (40, 60) durch jeweiliges Bewegen der Träger (24, 26) in die Kleberichtung.
  7. Zusammenfügeverfahren nach Anspruch 6, dadurch gekennzeichnet, dass die erste Schicht (40) eine Klebeoberfläche (46) aufweist, die vorgesehen ist, um an eine Klebeoberfläche (64) der zweiten Schicht (60) geklebt zu werden, wobei die Klebeoberflächen (46, 64) der ersten und der zweiten Schicht (40, 60) Neigungen mit einem Winkel größer als 10°, vorzugsweise größer als 15° in Bezug auf eine Ebene orthogonal zu der Kleberichtung aufweisen.
  8. Zusammenfügeverfahren nach den Ansprüchen 6 oder 7, dadurch gekennzeichnet, dass der Klebstoff eine Brookfield-Viskosität zwischen 700 und 1800 mPa.s bei der Klebetemperatur aufweist, vorzugsweise eine Brookfield-Viskosität zwischen 1000 und 1500 mPa.s, wobei die Klebetemperatur vorzugsweise zwischen 110 °C und 130 °C liegt.
  9. Zusammenfügeverfahren nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Schichten (40, 60) durch Einspritzen von Polystyrol in die Formen (80, 82) erhalten werden.
  10. Formverfahren mit Einwegform, dadurch gekennzeichnet, dass das Zusammenfügen eines Musters (50) zum Formen mit Einwegform nach einem der Ansprüche 6 bis 9 umfasst, wobei das zusammengefügte Muster (50) vorzugsweise ein Zylinderkopf einer Brennkraftmaschine ist.
EP12731068.8A 2011-06-23 2012-05-25 Maschine und verfahren zur zusammensetzung eines musters mit einer einwegform und entsprechendes formverfahren Active EP2723518B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1155530A FR2976830B1 (fr) 2011-06-23 2011-06-23 Machine et procede d'assemblage d'un modele pour moulage a modele perdu, procede de moulage correspondant
PCT/FR2012/051181 WO2012175836A2 (fr) 2011-06-23 2012-05-25 Machine et procede d'assemblage d'un modele pour moulage a modele perdu, procede de moulage correspondant

Publications (3)

Publication Number Publication Date
EP2723518A2 EP2723518A2 (de) 2014-04-30
EP2723518B1 true EP2723518B1 (de) 2015-09-09
EP2723518B8 EP2723518B8 (de) 2015-10-28

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EP12731068.8A Active EP2723518B8 (de) 2011-06-23 2012-05-25 Maschine und verfahren zur zusammensetzung eines musters mit einer einwegform und entsprechendes formverfahren

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Country Link
EP (1) EP2723518B8 (de)
CN (1) CN103826778B (de)
BR (1) BR112013032045A2 (de)
FR (1) FR2976830B1 (de)
WO (1) WO2012175836A2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3004974B1 (fr) * 2013-04-30 2015-05-01 Peugeot Citroen Automobiles Sa Dispositif d'encollage muni d'un masque d'encollage auto-adaptatif pour procede de fonderie a modele perdu
DE102013214534B4 (de) * 2013-07-25 2021-07-01 Bayerische Motoren Werke Aktiengesellschaft Gießvorrichtung und Gießverfahren
FR3021567B1 (fr) * 2014-05-27 2016-05-27 Peugeot Citroen Automobiles Sa Procede de realisation d'un modele perdu destine a etre utilise en fonderie
CN105598362B (zh) * 2016-01-06 2018-10-16 洛阳市致力新材料有限公司 一种消失模复合锤头模样的组合装置
CN106424549A (zh) * 2016-10-24 2017-02-22 张晓光 一种多管接头零件熔模铸造模具
FR3058337B1 (fr) * 2016-11-04 2018-11-30 Peugeot Citroen Automobiles Sa Machine amelioree d'assemblage par collage de strates d'un modele pour procede de moulage a modele perdu
FR3063445B1 (fr) * 2017-03-03 2019-03-22 Peugeot Citroen Automobiles Sa Dispositif de controle dimensionnel de strates d'un modele pour procede de moulage a modele perdu
FR3098133B1 (fr) * 2019-07-02 2022-01-14 Psa Automobiles Sa Assemblage par empilement de sous-parties pour définir une pièce à conduit de refroidissement à perte de charge minimisée

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
JPS61126943A (ja) * 1984-11-22 1986-06-14 Mazda Motor Corp シリンダブロツク鋳造用ケレン
JPS61266147A (ja) * 1985-05-17 1986-11-25 Honda Motor Co Ltd 車体外板のトリム加工用トリム下型の鋳型模型
US5407523A (en) * 1993-08-13 1995-04-18 Outboard Marine Corporation Apparatus for assembling lost foam casting patterns
US5944948A (en) * 1998-04-02 1999-08-31 Centennial Technologies, Inc. Apparatus for assembling a pair of members
US7296615B2 (en) * 2004-05-06 2007-11-20 General Electric Company Method and apparatus for determining the location of core-generated features in an investment casting

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Publication number Publication date
WO2012175836A2 (fr) 2012-12-27
CN103826778B (zh) 2016-03-09
FR2976830A1 (fr) 2012-12-28
CN103826778A (zh) 2014-05-28
EP2723518B8 (de) 2015-10-28
FR2976830B1 (fr) 2013-06-28
WO2012175836A3 (fr) 2013-02-21
EP2723518A2 (de) 2014-04-30
BR112013032045A2 (pt) 2016-12-13

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