FR2751572A1 - Surface treatment method for stamped components e.g. from metal strip - Google Patents

Surface treatment method for stamped components e.g. from metal strip Download PDF

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Publication number
FR2751572A1
FR2751572A1 FR9609326A FR9609326A FR2751572A1 FR 2751572 A1 FR2751572 A1 FR 2751572A1 FR 9609326 A FR9609326 A FR 9609326A FR 9609326 A FR9609326 A FR 9609326A FR 2751572 A1 FR2751572 A1 FR 2751572A1
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FR
France
Prior art keywords
strip
surface treatment
stamped
stamping
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR9609326A
Other languages
French (fr)
Other versions
FR2751572B1 (en
Inventor
Francois Mauris
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.)
Reboul SAS
Original Assignee
Reboul SMT SA
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 Reboul SMT SA filed Critical Reboul SMT SA
Priority to FR9609326A priority Critical patent/FR2751572B1/en
Publication of FR2751572A1 publication Critical patent/FR2751572A1/en
Application granted granted Critical
Publication of FR2751572B1 publication Critical patent/FR2751572B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/10Incompletely punching in such a manner that the parts are still coherent with the work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/06Making more than one part out of the same blank; Scrapless working
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

The method involves stamping the components so that they are only partially separated from the strip. This forms some sections (7) which are cut through completely, and others (3) which are only partially cut out. The surface treatment, e.g. electrolytic or painting, is carried out before the stamped components are finally separated from the strip. This is done by breaking the sections which are only partially cut. The thickness of these sections is only a fraction of the thickness of the strip, making them easy to break.

Description

Procédé pour traiter superficiellement des pièces embouties et
pièces obtenues suivant ce procédé
La présente invention concerne l'industrie des traitements de surface d'articles de faible épaisseur de matière formés en série par emboutissage avec découpe d'une bande de matériau, le plus souvent métallique.
Method for surface treatment of stamped parts and
parts obtained according to this process
The present invention relates to the surface treatment industry for articles of small thickness of material formed in series by stamping with cutting of a strip of material, most often metallic.

Classiquement, les pièces à traiter détachées de la bande sont fixes manuellement par des griffes sur des cadres pour subir un traitement superficiel tel qu'une électrolyse, une coloration, une application de peinture ou autre. I1 faut ensuite détacher les pièces manuellement. Conventionally, the parts to be treated detached from the strip are fixed manually by claws on frames to undergo a surface treatment such as electrolysis, coloring, application of paint or the like. It is then necessary to detach the parts manually.

L'invention a pour but d'éviter de telles interventions manuelles, qui sont onéreuses et sources de détérioration accidentelles. The invention aims to avoid such manual interventions, which are expensive and sources of accidental deterioration.

L'invention a pour objet un procédé pour réaliser un traitement de surface de pièces formées par emboutissage dans une bande de matériau caractérisé en ce qu on commence par former les pièces par emboutissage sans les découper totalement de la bande, puis on applique le traitement de surface à l'ensemble pièces-reste de bande, et on achève de séparer les pièces du reste de bande. The subject of the invention is a method for carrying out a surface treatment of parts formed by stamping in a strip of material, characterized in that one begins by forming the parts by stamping without completely cutting them from the strip, then the treatment of surface to the piece-rest of tape assembly, and the parts are separated from the rest of the tape.

On peut réaliser, lors de l'emboutissage, une prédécoupe sur la totalité du pourtour de la pièces emboutie, ou seulement sur une partie, avec découpe totale sur le reste du pourtour. It is possible to carry out, during stamping, a precut on the entire periphery of the stamped part, or only on a part, with total cutting on the rest of the periphery.

La prédécoupe laisse subsister une liaison de la pièce emboutie avec le reste de la bande, aisément frangible, dont l'épaisseur n'est qu'une fraction de l'épaisseur de la bande. The precut leaves a bond between the stamped part and the rest of the strip, easily frangible, the thickness of which is only a fraction of the thickness of the strip.

L'invention a aussi pour objet les pièces embouties ayant reçu un traitement de surface par le procédé de l'invention. The invention also relates to stamped parts having received a surface treatment by the method of the invention.

Une meilleure compréhension de l'invention pourra résulter de l'examen et de la description détaillée des dessins annexés qui représentent un mode de réalisation et de variantes choisis simplement à titre d'exemple parmi les nombreuses formes d'exécution, adaptations et variantes de l'invention concevables par un technicien averti. A better understanding of the invention may result from the examination and detailed description of the appended drawings which represent an embodiment and variants chosen simply by way of example from the numerous embodiments, adaptations and variants of the invention. invention conceivable by an experienced technician.

Sur ces dessins
- la figure 1 est une vue schématique en plan d'un tronçon de bande dans laquelle est emboutie une pièce avec prédécoupe sur tout le pourtour, suivant l'invention;
- la figure 2 est une vue analogue à celle de la figure 1 d'une variante de bande dans laquelle est emboutie une pièce prédécoupée sur une partie seulement du pourtour et totalement découpée par ailleurs
- la figure 3 est une vue schématique en plan d'une variante de bande emboutie à structure allégée, et
- la figure 4 est une vue schématique, en élévation et en coupe transversale, à grande échelle, d'une liaison prédécoupée entre la pièce emboutie et le reste de la bande.
On these drawings
- Figure 1 is a schematic plan view of a strip section in which is stamped a part with a precut around the entire periphery, according to the invention;
- Figure 2 is a view similar to that of Figure 1 of a strip variant in which is stamped a pre-cut piece on only part of the periphery and completely cut elsewhere
FIG. 3 is a schematic plan view of a variant of a stamped strip with a light structure, and
- Figure 4 is a schematic view, in elevation and in cross section, on a large scale, of a pre-cut connection between the stamped part and the rest of the strip.

La figure 1 représente un tronçon de bande métallique 1 au centre de laquelle est emboutie une pièce oblongue bombée 2 dont le pourtour 3 est totalement prédécoupé comme représenté en coupe sur la figure 4. La pièce 2 est entourée d'une zone 4 partiellement découpée par des incisions 5 en arc de cercle dans le but de faciliter le rétreint du métal lors de l'emboutissage, tout en conservant une liaison 6 avec les parties marginales 7 de la bande. FIG. 1 represents a section of metal strip 1 in the center of which a convex oblong piece 2 is pressed, the periphery 3 of which is completely precut as shown in section in FIG. 4. The piece 2 is surrounded by an area 4 partially cut by incisions 5 in an arc in order to facilitate the shrinking of the metal during stamping, while maintaining a connection 6 with the marginal parts 7 of the strip.

La figure 2 ne diffère de la figure 1 que par le fait que le pourtour de la pièce n'est prédécoupé qu'en deux parties 3 et complètement découpé dans les autres parties 7. Ceci permet de faciliter la séparation ultérieure de la pièce de la bande. FIG. 2 differs from FIG. 1 only in that the periphery of the part is only precut in two parts 3 and completely cut out in the other parts 7. This makes it possible to facilitate the subsequent separation of the part from the bandaged.

La bande emboutie représentée sur la figure 3 est ajourée afin d'éviter ultérieurement de traiter superficiellement des parties inutiles de la bande. The stamped strip shown in FIG. 3 is perforated in order to subsequently avoid unnecessary treatment of unnecessary parts of the strip.

Sur la figure 4, on a représenté en trait interrompu l'outil 9 servant à la prédécoupe de la pièce emboutie 2.  In FIG. 4, there is shown in broken lines the tool 9 used for the precut of the stamped part 2.

Claims (5)

REVENDICATIONS 1. Procédé pour réaliser un traitement de surface de pièces formées par emboutissage dans une bande de matériau caractérisé en ce qu'on commence par former les pièces par emboutissage sans les découper totalement de la bande, puis on applique le traitement de surface à l'ensemble pièces-reste de bande, et on achève de séparer les pièces du reste de bande.1. Method for carrying out a surface treatment of parts formed by stamping in a strip of material characterized in that one begins by forming the parts by stamping without cutting them completely from the strip, then the surface treatment is applied to the pieces-rest of the strip together, and the pieces are separated from the rest of the strip. 2. Procédé suivant la revendication 1, caractérisé en ce qu'on réalise lors de l'emboutissage une prédécoupe sur tout le pourtour de chaque pièce.2. Method according to claim 1, characterized in that a stamping is carried out on the entire periphery of each part during stamping. 3. Procédé suivant la revendication 1, caractérisé en ce que, lors de l'emboutissage, on effectue une prédécoupe sur une partie seulement du pourtour de la pièce, et une découpe totale sur le reste du pourtour de la 3. Method according to claim 1, characterized in that, during stamping, a precut is made on only part of the periphery of the part, and a total cut on the rest of the periphery of the s pièce.  s piece. 4. Procédé suivant l'une des revendications 2 et 3, caractérisé en ce que la prédécoupe laisse subsister une liaison de la pièce emboutie avec le reste de bande, aisément frangible ultérieurement, dont l'épaisseur n'est qu'une fraction de l'épaisseur de la bande.4. Method according to one of claims 2 and 3, characterized in that the precut leaves a connection of the stamped part with the rest of the strip, easily frangible later, the thickness of which is only a fraction of l 'thickness of the strip. 5. Pièces embouties ayant reçu un traitement de surface caractérisées en ce qu'elles ont été réalisées par un procédé suivant l'une des revendications 1 à 4. 5. Stamped parts having received a surface treatment characterized in that they were produced by a process according to one of claims 1 to 4.
FR9609326A 1996-07-24 1996-07-24 PROCESS FOR THE SURFACE TREATMENT OF MOUTHPIECES AND PARTS OBTAINED ACCORDING TO THIS PROCESS Expired - Fee Related FR2751572B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9609326A FR2751572B1 (en) 1996-07-24 1996-07-24 PROCESS FOR THE SURFACE TREATMENT OF MOUTHPIECES AND PARTS OBTAINED ACCORDING TO THIS PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9609326A FR2751572B1 (en) 1996-07-24 1996-07-24 PROCESS FOR THE SURFACE TREATMENT OF MOUTHPIECES AND PARTS OBTAINED ACCORDING TO THIS PROCESS

Publications (2)

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FR2751572A1 true FR2751572A1 (en) 1998-01-30
FR2751572B1 FR2751572B1 (en) 1998-10-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003040425A2 (en) * 2001-11-07 2003-05-15 Thyssenkrupp Stahl Ag Method for finishing blanks that are obtained from metal strips or sheet metal material
EP1504896A1 (en) * 2001-12-25 2005-02-09 Institute of Technology Precision Electrical Discharge Work's Method and system for producing laminate
US8377427B2 (en) 2000-03-31 2013-02-19 L'oreal Cosmetic composition based on nanoparticles and on water-soluble organic silicon compounds

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871945A (en) * 1973-03-12 1975-03-18 Ferranti Packard Ltd Magnetically actuable element
DE2739077A1 (en) * 1976-09-15 1978-03-23 Aerosol Inventions Dev PROCEDURE FOR PUNCHING PARTS BEFORE FORMING ON A FOLLOW-UP TOOL
EP0003131A2 (en) * 1978-01-10 1979-07-25 Aktieselskabet Laur. Knudsen Nordisk Elektricitets Selskab Pull-out blank in a sheet metal cabinet wall
GB2077149A (en) * 1980-06-09 1981-12-16 Tucker Fasteners Ltd A mandrel-gripping jaw for a blind-riveting tool and its method of manufacture
DE3109089A1 (en) * 1980-03-12 1982-02-18 Arthur Schmid AG, 8590 Romanshorn Process for the production of shuttles and shuttles produced by this process
US5018263A (en) * 1989-10-02 1991-05-28 Stern Melvin J Method for making a metal screen door frame

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871945A (en) * 1973-03-12 1975-03-18 Ferranti Packard Ltd Magnetically actuable element
DE2739077A1 (en) * 1976-09-15 1978-03-23 Aerosol Inventions Dev PROCEDURE FOR PUNCHING PARTS BEFORE FORMING ON A FOLLOW-UP TOOL
EP0003131A2 (en) * 1978-01-10 1979-07-25 Aktieselskabet Laur. Knudsen Nordisk Elektricitets Selskab Pull-out blank in a sheet metal cabinet wall
DE3109089A1 (en) * 1980-03-12 1982-02-18 Arthur Schmid AG, 8590 Romanshorn Process for the production of shuttles and shuttles produced by this process
GB2077149A (en) * 1980-06-09 1981-12-16 Tucker Fasteners Ltd A mandrel-gripping jaw for a blind-riveting tool and its method of manufacture
US5018263A (en) * 1989-10-02 1991-05-28 Stern Melvin J Method for making a metal screen door frame

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8377427B2 (en) 2000-03-31 2013-02-19 L'oreal Cosmetic composition based on nanoparticles and on water-soluble organic silicon compounds
WO2003040425A2 (en) * 2001-11-07 2003-05-15 Thyssenkrupp Stahl Ag Method for finishing blanks that are obtained from metal strips or sheet metal material
WO2003040425A3 (en) * 2001-11-07 2003-10-23 Thyssenkrupp Stahl Ag Method for finishing blanks that are obtained from metal strips or sheet metal material
EP1504896A1 (en) * 2001-12-25 2005-02-09 Institute of Technology Precision Electrical Discharge Work's Method and system for producing laminate
EP1504896B1 (en) * 2001-12-25 2008-12-10 Institute of Technology Precision Electrical Discharge Work's Method and system for producing laminate

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Publication number Publication date
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Effective date: 20100331