marking device for a casting made from a sand mold

Abstract

The present invention relates to a marking device for a casting produced in a sand mold, said device comprising at least: an identification plate, bearing at least one identification mark, and comprising first tabs for attaching said part adapted to be embedded in the mass of said part; a mold-fixing plate, comprising tabs for attaching said mold adapted to be inserted into the sand constituting said mold, said device comprising means for reversibly attaching said identification and mold-fixing plates to each other. Fig. 1

Description

Title of the invention: A marking device for a casting made from a sand mold 1. Scope of the invention

[0001] The field of the invention is that of marking foundry parts cast in sand molds. 2. Prior art

[0002] Castings poured into sand molds are commonly marked to ensure their traceability.

[0003] A sand mold is classically made by placing a model of the part to be cast inside a frame which is filled with compacted sand during a sand compaction phase.

[0004] To ensure traceability of foundry parts, it is known to manually place lettering on the model prior to filling the frame with sand.

[0005] After compacting the sand and removing the model, and therefore the lettering which is attached to the model, the resulting mold, surrounded by the frame, includes a negative impression of the shape of the part to be cast and a negative impression of the traceability lettering.

[0006] The casting is then produced by filling the mold, i.e. the negative impression of the part and the lettering, with material (for example cast iron, aluminum alloy...).

[0007] The part is then unmolded (i.e. removed from the sand mold by breaking the sand mold) and presents on its surface the shape of the lettering, formed in the mass of the material, which ensures the traceability of the part.

[0008] This technique is not very effective because it is unreliable given the manual placement of traceability lettering on the model.

[0009] Indeed, this technique is unreliable because the manual placement of lettering is a source of error (forgetting to change the lettering, error in the selection of letters, forgetting letter(s), etc...).

[0010] Moreover, poor filling of the impression by the material or a local lack of material in the impression at the level of the lettering will make the lettering formed in the mass of the part illegible.

[0011] Furthermore, the removed parts, i.e., those taken out of the mold, are full of sand and must therefore be shot-blasted to clean them. This shot blasting can sometimes damage the lettering formed within the part, which impairs traceability.

[0012] In addition, the reading and manual entry by an operator of the information contained in the lettering can be a source of error (misreading by operator, misentry by operator).

[0013] The traceability of foundry parts can therefore be improved. 3. Objectives of the invention

[0014] The invention aims in particular to provide an effective solution to at least some of these different problems.

[0015] In particular, according to at least one embodiment, an objective of the invention is to provide a reliable traceability technique for foundry parts cast in sand molds.

[0016] In particular, the invention aims, according to at least one embodiment, to provide such a technique which makes it possible to avoid traceability errors when applying marking elements and / or when reading traceability marks.

[0017] Another objective of the invention is, according to at least one embodiment, to provide such a technique which makes it possible to affix perfectly legible identification marks to cast parts to allow their traceability.

[0018] Another objective of the invention is, according to at least one embodiment, to provide such a technique which makes it possible to affix to an impression identification marks which remain permanently over time on cast parts.

[0019] Another objective of the invention is, in at least one embodiment, to optimize the application of traceability marks in terms of ease of application during the manufacturing process and possibly in terms of application time. 4. Presentation of the invention

[0020] To this end, the invention proposes a marking device for a casting made from a sand mold, said device comprising at least: - an identification plate, featuring at least one identification mark, and including initial fixing tabs for said part suitable for being embedded in the mass of said part; - a fixing plate for said mold, comprising fixing tabs for said mold suitable for insertion into the sand constituting said mold,

[0021] said device comprising means for reversibly joining together said identification and joining plates.

[0022] Thus, the invention consists of providing a marking device comprising at least: - an identification plate bearing at least one identification mark and including fixing tabs intended to be embedded in the mass of a casting, and - a mold attachment plate including tabs for fixing to the mold designed to be inserted into the sand of the mold,

[0023] and to connect the identification and connection plates together in a reversible manner.

[0024] Thus, after casting, when the identification device is attached to the cast part because the tabs for fixing to the part are embedded in the mass of the part, the fixing plate can be detached from the identification plate, which thus remains attached to the part.

[0025] The identification mark placed on the identification plate is then perfectly legible and attached to the part.

[0026] According to one possible feature, the mold attachment plate comprises second fixing tabs for said part adapted to be embedded in the mass of said part, and: - said second fixing lugs are arranged on the periphery of said fastening plates and at least partially curved below said identification plate to ensure the assembly together of said identification plate and said fastening plate, - said first fixing tabs are at least partly curved below said identification plate and extending in an offset manner towards the inside of said identification plate relative to the periphery of said fastening plate.

[0027] The part-fixing tabs of the bonding plate are folded under the identification plate, which is thus held securely in place by the part-fixing tabs. Furthermore, the part-fixing tabs of the identification plate are offset inwards relative to the part-fixing tabs of the bonding plate. Therefore, after casting, when the identification device is bonded to the cast part because the part-fixing tabs are embedded within the part, cutting the part-fixing tabs of the bonding plate has no effect on the part-fixing tabs of the identification plate, which thus remains bonded to the part, while the mold-fixing plate is separated from it.

[0028] The identification mark placed on the identification plate is then perfectly legible and attached to the part.

[0029] According to one possible feature, said fastening plate is traversed by a reading light of said at least one identification mark.

[0030] It is thus possible for an operator to read the identification mark after the device has been attached to the model.

[0031] According to one possible feature, a device according to the invention comprises a thermal protection plate disposed on said identification plate.

[0032] This makes it possible, during casting, to avoid welding the identification plate with the bonding plate.

[0033] According to one possible feature, a device according to the invention includes an intercalated plate disposed below said fastening plate.

[0034] Such an intercalary plate allows, during shot blasting of the cast part after unscoring, to protect the identification plate from shot blasting.

[0035] According to one possible feature, said interleaving plate has at least one identification mark of said part readable through said reading light of said fastening plate.

[0036] It is thus possible for an operator to read the identification mark after the device has been attached to the model.

[0037] According to one possible characteristic, said reversible fastening means are capable of reversibly fastening said thermal protection plate and / or said intercalary plate to said identification and fastening plates.

[0038] It is therefore possible, after unbuckling, to separate the protective and intermediate plates so that only the identification plate remains attached to the cast part.

[0039] According to one possible feature, said thermal protection plate includes third fixing tabs for said part adapted to be embedded in the mass of said part, said third fixing tabs being arranged at the periphery of said thermal protection plate and being at least partly curved with said second fixing tabs below said identification plate to ensure the assembly together of said identification plate, said thermal protection plate and said fastening plate.

[0040] This allows for a simple but effective reversible bonding of the thermal protection plate.

[0041] According to one possible feature, said identification plate includes peripheral fixing tabs to said part adapted to be embedded in the mass of said part, said peripheral fixing tabs being arranged at the periphery of said identification plate and being at least partly curved with said second and / or third fixing tabs below said identification plate to ensure the assembly together of said identification plate, said thermal protection plate and said bonding plate.

[0042] This allows the plates to be joined together in a simple but effective way.

[0043] According to one possible feature, said intercalated plate is held together with the other plates by wedging by means of said second and / or third fixing tabs and / or said peripheral fixing tabs curved below said identification plate.

[0044] This allows for a simple but effective reversible bonding of the intercalated plate to the other plates.

[0045] According to one possible feature, said at least one identification mark is made by deformation of said identification plate and / or said interleaf plate.

[0046] According to one possible characteristic, said at least one identification mark belongs to the group comprising barcodes, datamatrix, alphanumeric character signs, special character signs.

[0047] The use of a datamatrix is ​​preferable because it can be read by computer rather than: - by the naked eye or by OCR like alphanumeric characters and special characters, or - by laser reader, like barcodes.

[0048] The invention also covers a method for marking a casting by means of a marking device according to any one of the above variants, said method comprising at least: - a step of setting up said identification device on a model of said casting part, said identification plate being in contact with said model; - a step of setting up a frame on said model and filling said frame with sand and compacting said sand during which said fixing tabs to the mold are embedded in said sand; - a step of dismantling said model and recovering said mold to which said identification device is attached (the mold can then be sent to the next stage of the manufacturing process by casting); - a casting step in said mold of the material of said part to be cast during which said first fixing tabs to said part are embedded in said material; - a step of unchecking said part; - a shot blasting stage of said part;

[0049] a step of detaching said detachment plate.

[0050] According to one possible feature, said marking device comprising said second fixing lugs and / or said third fixing lugs and / or said peripheral fixing pastes, said second fixing lugs and / or said third fixing lugs and / or said peripheral fixing pastes being embedded in said material during said casting step.

[0051] According to one possible feature, said marking device comprising said thermal protection plate and / or said intercalary plate, said bonding step includes the unbonding of said thermal protection plate and / or said intercalary plate.

[0052] According to one possible feature, said marking device comprising said second fixing lugs and / or said third fixing lugs and / or said peripheral fixing lugs, said decoupling step comprising cutting said second fixing lugs and / or said third fixing lugs and / or said peripheral fixing lugs.

[0053] According to one possible feature, said marking device comprising said interleaving plate, said bonding plate and said interleaving plate being damaged during said shot blasting step. 5. Description of the figures

[0054] Other features and advantages of the invention will become apparent from the following description of particular embodiments, given by way of simple illustrative and non-limiting example, and the accompanying drawings, among which:

[0055] [Fig-1] [Fig.1] illustrates a top perspective view of a device identification according to the invention;

[0056] [Fig.2] [Fig.2] illustrates a partial view of the device of [Fig.1];

[0057] [Fig.3] [Fig.3] illustrates a bottom view of an identification plate of the device of [Fig.l], designed to remain attached to the part to be marked;

[0058] [Fig.4] [Fig.5] [Fig.4] illustrates a bottom view of an identification plate with its folded fixing tabs and [Fig.5] illustrates a cross-sectional view along axis AA of [Fig.4];

[0059] [Fig. 6] [Fig. 6] illustrates a bottom view of a thermal protection plate of the device of [Fig.1];

[0060] [Fig.7] [Fig.8] [Fig.7] illustrates a bottom view of a protective plate thermal with its folded fixing tabs and [Fig.8] illustrates a cross-sectional view along axis AA of [Fig.7];

[0061] [Fig. 9] [Fig. 9] illustrates a bottom view of an interlayer plate of the device of the [Fig.l];

[0062] [Fig. 10] [Fig. 10] illustrates a view from below of a sand-bonding plate of the device of [Fig. 1];

[0063] [Fig. 11] [Fig. 12] [Fig. 11] illustrates a bottom view of a sand bonding plate with its folded fixing and bonding tabs and [Fig.12] illustrates a cross-sectional view along axis AA of [Fig.11];

[0064] [Fig. 13] [Fig. 13] illustrates a perspective view from below of an identification device according to the invention;

[0065] [Fig. 14] [Fig. 14] illustrates a bottom view of an identification device according to the invention;

[0066] [Fig. 15] [Fig. 16] Figures 15 and 16 illustrate respectively cross-sectional views along axis AA and axis BB of [Fig. 14];

[0067] [Fig. 17] [Fig. 17] illustrates a flowchart of a method for marking a part cast in a sand mold according to the invention.

[0068] 6. Description of particular embodiments 6.1. Marking device 6.1.1. Structure of the marking device

[0069] An example of the embodiment of a marking device according to the invention is presented in relation to figures 1 to 16.

[0070] In the illustrated embodiment, this device comprises a stack of several plates, namely: an identification plate 10; a thermal protection plate 11; an interleaved plate 12; a fixing plate to a mold 13.

[0071] The identification plate 10 has a square quadrangular peripheral contour. This contour could, however, be rectangular or have a shape other than quadrangular.

[0072] The identification plate 10 includes first fixing tabs 100 suitable for being embedded in the mass of a part cast in a sand mold.

[0073] These first fixing tabs 100 are provided approximately in the center of each side of the identification plate 10. Their end attached to the identification plate 10 is offset inwards from the edge 101 of the sides of the identification plate 10. The value of this offset d will preferably be at least 1 millimeter and even more preferably on the order of 2.5 millimeters. Generally, the value of this offset d will be such that it will protect this fixing tab 100 during the cutting operation of the tabs 102, 111 and 131 which will be described in more detail later.

[0074] In this embodiment, the identification plate 10 includes additional peripheral mounting tabs 102 suitable for being embedded in the mass of a part cast in a mold. These mounting tabs 102 are provided along each side of the identification plate 10, on either side of the first mounting tabs 100. In this embodiment, there are three on each side of the first mounting tabs 100. However, the number could be greater or less, for example, one on each side of each first mounting tab 100. They could also be omitted.

[0075] The fixing tabs 100, 102 extend in the plane of the identification plate 10 and are foldable, as will be explained in more detail later.

[0076] The identification plate 10 bears at least one identification mark 103 to ensure the traceability of the part to which it is attached. This identification mark may, for example, be at least one sequence of characters (letters, numbers, special characters, etc.), at least one barcode, at least one DataMatrix code, or a combination of at least two of these types of identification marks. The use of a DataMatrix code is preferred because it can be read by computer, unlike sequences of characters which are not readable by computer except by OCR, which is less reliable. This at least one identification mark will preferably be produced by deformation.

[0077] The identification plate 10 is preferably made of steel, in particular stainless steel, or other suitable material.

[0078] The thermal protection plate 11 has the same shape as the identification plate 10. In this embodiment, it therefore has a square quadrangular peripheral contour.

[0079] The thermal protection plate 11 includes third mounting tabs 111 suitable for being embedded in the mass of a part cast in a sand mold. These mounting tabs 111 are provided along each side of the plate 11 and are positioned so that they overlap the mounting tabs 102 of the identification plate 10 when the identification plate 10 and the thermal protection plate 11 are superimposed. The number of third mounting tabs 111 of the thermal protection plate 11 is identical to the number of mounting tabs 102 of the identification plate 10. However, if no mounting tab 102 is used on the identification plate 10, the mounting tabs 111 will nevertheless be used on the thermal protection plate 11.

[0080] The fixing tabs 111 extend in the plane of the thermal protection plate 11 and are foldable, as will be explained in more detail later.

[0081] The thermal protection plate 11 is preferably made of the same material as all the other plates but is further coated with a refractory coating such as, for example, a water or alcohol layer.

[0082] The interleaf 12 has an identical contour to the contour of the identification plates 10 and thermal protection plates 11. In other words, in this embodiment it is square in shape.

[0083] The intercalated plate 12 does not include a tab for fixing to a part cast in a sand mold.

[0084] The interleaf 12 bears at least one identification mark 120 identical to the identification mark 103 of the identification plate 10. It is preferably made of steel, in particular stainless steel, or any other suitable material.

[0085] The fixing plate 13 to a mold has an identical shape to that of the identification plates 10, thermal protection plate 11 and interlayer plate 12. It therefore has in this embodiment a square quadrangular peripheral contour.

[0086] The mold-fixing plate 13 includes secondary fixing tabs 131 adapted to be embedded in the mass of a part cast in a sand mold. These fixing tabs 131 are provided along each side of the plate 13 and are positioned such that they overlap the fixing tabs 102 of the identification plate 10 and the third fixing tabs 111 of the thermal protection plate 11 when the identification plate 10, the thermal protection plate 11, and the fixing plate 13 are stacked. The number of third fixing tabs 131 of the fixing plate 13 is identical to the number of fixing tabs 102 of the identification plate 10.However, if no fixing tab 102 is implemented on the identification plate 10, the fixing tabs 131 will nevertheless be implemented on the package 13 in the same number as the number of fixing tabs 111 on the thermal protection plate 11.

[0087] The fastening tabs 131 extend in the plane of the fastening plate 13 and are foldable, as will be explained in more detail later.

[0088] The fastening plate 131 is traversed in its center by a recess 132 which defines the contours of two fixing tabs 133 for a sand mold. The fixing tabs 133 extend in the plane of the plate 13 and are foldable, as will be explained in more detail later.

[0089] The fastening plate 13 is preferably made of steel, in particular stainless steel, or other suitable material. 6.1.2. Dimensions and variants

[0090] By way of example, the plates 10, 11, 12, and 13 in this embodiment have sides 55 millimeters long and a thickness of 0.5 millimeters. The mounting tabs are 3 millimeters wide and spaced 1.5 millimeters apart in pairs. The mounting tabs 100 of the identification plate 10 are offset from the edge of the corresponding side of the plate by approximately 2.5 millimeters. The mounting tabs 102 located on either side of a mounting tab 100 are approximately 15 millimeters apart. The mounting tabs 133 are approximately 15 millimeters long.

[0091] These dimensions are purely illustrative. They could of course be different, either larger or smaller.

[0092] In variants, the thermal protection plate 11 and / or the intercalary plate 12 may not be implemented.

[0093] The identification plates 10, thermal protection plate 11, interlayer plate 12 and securing plate 13 can, for example, be made by stamping. 6.1.3. Assembly of the marking device

[0094] The identification device is assembled in the following manner.

[0095] The identification plates 10, thermal protection plate 11, interlayer 12 and securing plate 13 are stacked one on top of the other, in that order, in such a way that their contours coincide (i.e. overlap) and that the fixing tabs 102, 111, and 131 coincide (i.e. overlap).

[0096] The identification plates 10 and interleaf 12 are placed in such a way that their identification marks are oriented towards the securing plate 13.

[0097] The fastening tabs 102, 111, 131 are bent in the opposite direction to the securing plate 13, i.e., towards the identification plate 10, so as to pass underneath it, forming an angle α of approximately 20° with its plane. This angle α may be between 0° and 90°. The bent area forms an arc of a circle. However, it could also form a sharp edge.

[0098] The fact that the fixing tabs 102, 111, 131 are thus at least partly curved under the identification plate 10, allows the reversible assembly of all the identification plates 10, thermal protection plate 11, interlayer 12 and securing plate 13.

[0099] The identification plates 10, thermal protection plate 11, interlayer 12 and securing plate 13 then form a single unit.

[0100] The fixing tabs 100 of the identification plate 10 are also bent in the opposite direction to the securing plate 13 so as to pass underneath the identification plate 10, forming an angle α of approximately 20° with it. This angle α may be between 0° and 90°. The bent area forms an arc of a circle. However, it could form a sharp edge.

[0101] The fastening tabs 133 are then bent in a direction opposite to the identification plate 10 to form with the plane of the fastening plate 13 an angle [3 of 20°. This angle [3 may be between 0 and 90°.

[0102] The obvious 133 then forms a light through which the identification mark 120 of the intercalated plate 12 is readable. 6.2. Marking process

[0103] A method for marking, using a marking device according to the invention, a part molded in a sand mold will now be described with reference to [Fig.17],

[0104] Such a method includes a step 20 of placing the identification device on a model of the part to be cast, a welded frame being positioned on this model to allow the sand to be clamped. The identification device is positioned so that the identification plate 10 is in contact with the model. Fastening means can be used to hold the identification device in place on the model. This is not essential, in particular, when positioning on a parallel surface above or below the mold.

[0105] Before and during the placement of the identification device on the model, the operator can read the identification mark 130 of the interleaf 12 through the light 133 of the fastening plate 13.

[0106] When an operator takes hold of an identification device, it is anonymous, i.e. not assigned to a casting part.

[0107] After its placement on the model, the identification device is associated with the current manufacturing order of a part and thus loses its anonymous character.

[0108] After placement on the model and association with a manufacturing order, the identification mark makes it possible to identify a part to be cast in relation to its manufacturing order.

[0109] Following the placement on the model of the identification device, the tabs for securing to the mold 133 extend in the air in a direction opposite to the model.

[0110] The process then includes a step 21 of placing the frame around the model and filling the frame with sand, during which the mold attachment tabs 133 are embedded in the sand. The sand is then compacted within the frame.

[0111] The process then includes a step 22 of pattern retrieval. To do this, the pattern is removed from the frame and the sand during a disassembly operation. The identification device remains attached to the mold insofar as the retaining tabs 133 are embedded in the compacted sand.

[0112] The mold may comprise two half-molds, each made as indicated below, except that the marking device is in principle positioned only in one of the half-molds.

[0113] The process then includes a step 23 of pouring the material of the part to be cast into the mold.

[0114] When the mold comprises two half-molds, the pouring is preceded by a step of closing the two half-molds to constitute the mold.

[0115] During this pouring, the bonding tabs 100, 102, 111, 131 are embedded in molten material poured into the mold.

[0116] During casting, the radiation emitted by the molten iron heats the first wafer very intensely, creating a risk that it may slightly fuse to the second wafer. The use of the thermally protected wafer prevents this risk.

[0117] The process then includes a step 24 of demolding (unmolding) the part cast in the mold. This step results in the destruction of the sand mold.

[0118] The process then includes a shot blasting step 25 of the part extracted from the mold. Shot blasting cleans the part cast in the mold and removes the sand. Although this step is almost always carried out, the protective plate remains optional.

[0119] During shot blasting step 25, the bonding plate 130 and the interlayer plate 12 are damaged. These plates, along with the thermal protection plate 11, protect the identification plate 10 during shot blasting, so that at the end of shot blasting, the identification plate 10 is in principle intact.

[0120] The process then includes a step 26 of uncoupling the securing tabs 13, interlayer 12 and thermal protection 11.

[0121] This step 26 includes cutting the mounting tabs 102, 111 and 131, for example, using an angle grinder. Given the offset of the mounting tabs 100 relative to the edges 101 of the identification plate 10, the mounting tabs 100 remain intact during the cutting of the other mounting tabs 102, 111 and 131.

[0122] At the end of this cutting step 26, the thermal protection plates 11, interlayer 12 and the bonding plate 13 are separated from the cast part while the identification plate 10 remains attached to it because the fixing tabs 100 are embedded in its mass.

[0123] If, during shot blasting step 25, the identification plate 10 were to be damaged so that its identification mark was no longer legible, its fixing tabs 100 could also be cut to detach the plate identification mark 10 of the casting. The identification mark 103, embedded in the mass of the casting under the identification plate 10, would then be visible to allow identification of the part. 6.3. Advantages

[0124] A marking device according to the invention thus makes it possible to provide a technique for marking parts cast in a sand mold: - simple and quick to implement, consequently increasing productivity, - reducing the risk of traceability errors both during the manufacturing process and subsequently, - sustainable over time, - economic.

Claims

Demands

1. A marking device for a casting cast in a sand mold, said device comprising at least: - an identification plate, having at least one identification mark, and comprising first tabs for fixing said part adapted to be embedded in the mass of said part; - a fixing plate for said mold, comprising fixing tabs for said mold adapted to be inserted in the sand constituting said mold, said device comprising means for reversibly fixing said identification and fixing plates together.

2. Device according to claim 1 wherein said fixing plate said mold comprises second fixing tabs to said part adapted to be embedded in the mass of said part, said second fixing tabs being disposed at the periphery of said fixing plate and at least partly curved under said identification plate to ensure the assembly together of said identification plate and said fixing plate, said first fixing tabs being at least partly curved under said identification plate and extending in an offset manner towards the inside of said identification plate relative to the periphery of said fixing plate.

3. Device according to claim 1 or 2 in which said fastening plate is traversed by a reading light of said at least one identification mark.

4. Device according to any one of claims 1 to 3 comprising a thermal protection plate disposed on said identification plate.

5. Device according to any one of claims 1 to 4 comprising an interleaving plate disposed below said securing plate.

6. Device according to claims 3 and 5 wherein said interleaving plate has at least one identification mark of said part readable through said reading light of said fastening plate.

7. Device according to claims 4 and / or 5, alone or in combination with claim 6, wherein said reversible fastening means are capable of reversibly fastening said thermal protection plate and / or said intercalary plate to said identification and fastening plates.

8. Device according to claims 2 and 4 alone or in combination with any one of claims 5 to 7, wherein said thermal protection plate includes third fixing tabs to said part adapted to be embedded in the mass of said part, said third fixing tabs being disposed at the periphery of said thermal protection plates and being at least partly curved with said second fixing tabs below said identification plate to ensure the assembly together of said identification plate, said thermal protection plate and said fastening plate.

9. Device according to claims 2 and / or 8 combined with claim 4 alone or in combination with any one of claims 5 to 7 wherein said identification plate comprises peripheral fixing tabs to said part adapted to be embedded in the mass of said part, said peripheral fixing tabs being disposed at the periphery of said identification plate and being at least partly curved with said second and / or third fixing tabs below said identification plate to ensure the assembly together of said identification plate, said thermal protection plate and said bonding plate.

10. Device according to claims 2 and / or 8 and / or 9 combined with claim 5 alone or combined with any one of claims 6 and 7 wherein said interleaving plate is held together with the other plates by wedging by means of said second and / or third fixing tabs and / or said peripheral fixing tabs curved under said identification plate.

11. Device according to any one of claims 1 to 10 wherein said at least one identification mark is made by deformation of said identification plate and / or said interleaf plate.

12. Device according to any one of claims 1 to 11 wherein said at least one identification mark belongs to the group comprising barcodes, datamatrix, alphanumeric character signs, special character signs.

13. A method for marking a casting by means of a marking device according to any one of claims 1 to 12, said method comprising at least: - a step of placing said identification device on a pattern of said casting, said identification plate being in contact with said pattern; - a step of placing a frame on said pattern and filling said frame with sand and compacting said sand during which said mold fixing tabs are embedded in said sand; - a step of removing said pattern and retrieving said mold to which said identification device is attached; - a step of pouring the material of said casting into said mold during which said first fixing tabs for said casting are embedded in said material; - a step of removing said casting;- a shot blasting stage of said part; - a stage of detaching said bonding plate from the mold.

14. Method according to claim 13, said marking device according to claims 2 and / or 8 and / or 9 alone or in combination with any one of claims 10 to 12 comprising said second fixing lugs and / or said third fixing lugs and / or said peripheral fixing pastes, said second fixing lugs and / or said third fixing lugs and / or said peripheral fixing pastes being embedded in said material during said casting step.

15. Method according to claim 13 or 14, said marking device according to claims 4 and / or 5 alone or in combination with any one of claims 6 to 12 comprising said thermal protection plate and / or said intercalary plate, said bonding step comprises the unbonding of said thermal protection plate and / or said intercalary plate.

16. Method according to any one of claims 13 to 15, said marking device according to claim 2 and / or 8 and / or 9 alone or in combination with any one of claims 10 to 12 comprising said second fixing tabs and / or said third fixing tabs and / or said peripheral fixing tabs, said decoupling step comprising cutting said second fixing tabs and / or said third fixing tabs and / or said peripheral fixing tabs.

17. Method according to any one of claims 13 to 16, said marking device according to claim 5 alone or in combination with any one of claims 6 to 12 comprising said interleaving plate, said bonding plate and said interleaving plate being damaged during said shot blasting step.

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