US3786704A - Method for manufacturing metallic objects from circular plates - Google Patents

Method for manufacturing metallic objects from circular plates Download PDF

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Publication number
US3786704A
US3786704A US00235983A US3786704DA US3786704A US 3786704 A US3786704 A US 3786704A US 00235983 A US00235983 A US 00235983A US 3786704D A US3786704D A US 3786704DA US 3786704 A US3786704 A US 3786704A
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United States
Prior art keywords
plates
metallic objects
triangle
triangles
manufacturing metallic
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Expired - Lifetime
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US00235983A
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English (en)
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M Lachaussee
A Maigret
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/06—Making more than one part out of the same blank; Scrapless working
    • B21D28/08—Zig-zag sequence working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0586—Effecting diverse or sequential cuts in same cutting step

Definitions

  • ABSTRACT In a method for manufacturing metallic objects from circular plates which are in staggered arrangement and are perforated on a part of their outline exactly at the diameter of the seryiceable part in order to be held in the metallic strip in which they are formed which passes step by step beneath the moulding tools there is provided the step which consists in arranging said plates in the strip in order to be immediately tangential in respect to each other and separated solely by equilateral triangles haying concave sides which surround said plates.
  • the present invention relates to a method for manufacturing metallic objects by stamping out plates which are formed in staggered arrangement in a metal strip and are held there in the course of manufacture.
  • the object of the present invention is to avoid perfometal, for example of copper, is used and is passed rating the opening surrounding the plates, thereby avoiding the separating walls,-which results in impor tant economical advantages owing to the reduction in the processes which are to be carried out and in the amount of waste.
  • the invention relates to a method. for manufacturing metallic objects from plates which are set in staggered arrangement in a metallic strip in which they are maintained after having been cut out with a diameter exactly equal to the diameter of the part used, on only a part of their periphery, characterized in that the said plates are arranged in the strip in order to be immediately tangential in respect of each other and separated solely by equilateral triangles having concave sides which surround the said plates.
  • each plate has along its periphery alternately a separation slit of one curve-sided triangle and a connecting segment for a following curve-sided triangle.
  • each separation slit extends over the entire length of one side of a given curve-sided triangle and over approximately half the length of a side of a curve-sided triangle following the half of the length of this latter side which constitutes the connecting segment.
  • each plate has along its periphery at each of the curve-sided triangle which surround it a separation slit and a connecting segment for the said triangles. Moreover, the separation slit of each given curve-sided triangle and the connecting segment with through various fixed points where the shaping tools carry out the working processes which are provided for manufacturing an object by stamping out.
  • FIG. 1 shows a strip 1 comprising three rows of circular plates 2. These plates are set in staggered arrangement so that they are directly tangential in respect of each other, so that there exits therebetween sections of the strip having the shape of equilateral triangles, respectively 3 and 6, whose respective sides 3a and 6a are curved and concave; since the circular plates 2 meet each other at their points of contact, they are surrounded solely by curve-sided equilateral triangles 3 and 6, in this way, the sections formed by these triangles have a minimum area.
  • the plates 2 have a size exactly equal to the part of the sheet metal which is strictly necessary for punching out an object, i.e. these plates 2 only comprise the part of the sheet metal necessary for stamping out the finished object; in other words,'the weight of a finished object is very near the weight of a plate; there is no waste other than the triangles 3 and 6, the side strips la and some possible waste when trimming the last object.
  • the plates 2 are formed by providing along their periphery, at their exact diameter, alternately separation slits 4 which only extend for a part of the periphery interpersed by connecting segments 5; the separation slits 4 extend for the entire length of the sides 3a and only for a part of the sides 6a.
  • Each of the said plates is surrounded alternately by a triangle 3 and by a triangle 6; the slits 4 are illustrated by dotted lines whilst the connecting segments 5 which only extend for a part of the side 6a are illustrated by solid lines.
  • These slits 4 are set at to each other; the segments are also at 120 to each other. After having made the slits 4 and allowed the segments 5 to remain, the part of the strip corresponding to the triangles 3 is disengaged and removed whilst that part corresponding to the triangles 6 remains and is linked with the plates by the said segments 5.
  • FIG. 1 A second arrangement for the plates is shown in FIG. 1
  • a strip of sheet metal 7 comprises three rows of circular plates 8 set in staggered arrangement, directly tangential in respect of each other so that only curve-sided equilateral triangles 9 remain which surround the said plates.
  • the parts of the strip formed by these triangles which constitute the waste have a minimum area.
  • the plates 8 are cut partly along their periphery to a size exactly equal to that intended in the manufacture of the objects an there is no waste other than the triangles 9 and the side strips 7a.
  • each plate 8 has alternately a separation slit l and a connecting segment 11, with regard to each triangle 9; each slit 10 and each segment 11 each extend over approximately half the sides of each triangle; the slits 10 which are set at 60 to each other and are shown in dotted lines, whilst the connecting segments 11 likewise set at 60 to each other are shown in solid lines.
  • the plates 8 which remain in the strip 7 by way of the connecting segments 11 and triangles 9 can undergo the shaping processes by advancing the said strip step by step, resulting in objects which are separated at the end of the process by cutting the segments 11 and are then subjected to trimming.
  • a method for manufacturing metallic objects from circular plates located side by side in echelon formation in a metal strip comprising the steps of: cutting said circular plates with a shaping tool along portions of the outer periphery of said plates leaving segments therealong uncut, while forming around said plates a plurality of concave-sided equilaterally shaped triangles, the concave sides of which define respective portions of the outline of said circular plates, said circular plates remaining linked to said triangles by said segments; passing said metal strip with said triangles in a step by step manner beneath said shaping tool for shaping said plates in said strip by stamping to obtain finished articles; and finally cutting said segments for removing said articles from said strip.
  • each plate has along its periphery alternately a separation slit of one curve-sided triangle and a connecting segment for a following curve-sided triangle.
  • each separation slit extends over'the entire length of one side of a given curve-sided triangle and over approximately half the length of a side of a curve-sided triangle following the half of the length of this latter side which constitutes the connecting segment.
  • each plate has along its periphery at each of the curve-sided triangles which surround it a separation slit and a connecting segment for the said triangles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Punching Or Piercing (AREA)
US00235983A 1971-03-19 1972-03-20 Method for manufacturing metallic objects from circular plates Expired - Lifetime US3786704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE6043234 1971-03-19

Publications (1)

Publication Number Publication Date
US3786704A true US3786704A (en) 1974-01-22

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Application Number Title Priority Date Filing Date
US00235983A Expired - Lifetime US3786704A (en) 1971-03-19 1972-03-20 Method for manufacturing metallic objects from circular plates

Country Status (4)

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US (1) US3786704A (en:Method)
CH (1) CH546103A (en:Method)
DE (1) DE2209927C3 (en:Method)
FR (1) FR2130127B1 (en:Method)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5112427A (en) * 1988-09-22 1992-05-12 Dennison Systems Denmark Method and device for dispensing of labels
GB2311742A (en) * 1996-04-03 1997-10-08 Denso Corp A pressing Method
USD552047S1 (en) * 2005-02-28 2007-10-02 Tokyo Electron Limited Process tube for manufacturing semiconductor wafers
CN102072397A (zh) * 2010-11-12 2011-05-25 丁振荣 金属带及其加工方法
CN103433957A (zh) * 2013-09-04 2013-12-11 东莞市飞新达精密机械科技有限公司 模切机的跳步控制方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD135972A3 (de) * 1976-05-14 1979-06-13 Zaumseil Hans Juergen Verfahren und schneidwerkzeug zur herstellung von elektromotorenblechen
PL122194B1 (en) * 1979-04-13 1982-06-30 Politechnika Lodzka Blanking die
WO1984003647A1 (fr) * 1983-03-15 1984-09-27 Styner & Bienz Ag Procede de fabrication de pieces decoupees avec economie de materiau
DE102017117238B4 (de) 2017-07-31 2022-02-17 Aweba Werkzeugbau Gmbh Aue Transferwerkzeug für mehrreihige Rondenbearbeitungen
DE102017117239B3 (de) * 2017-07-31 2018-09-13 Aweba Werkzeugbau Gmbh Aue Transferwerkzeug für mehrreihige Rondenschnitte

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US745505A (en) * 1902-12-12 1903-12-01 John Lee Method of cutting can ends.
US1439393A (en) * 1919-12-23 1922-12-19 Continental Can Co Method for cutting disks or blanks from untrimmed commercial sheets
US2446198A (en) * 1945-11-16 1948-08-03 American Can Co Method of cutting blanks
FR1123017A (fr) * 1955-03-02 1956-09-17 Ets Japy Freres Procédé de découpage de feuilles planes
US3383065A (en) * 1965-04-14 1968-05-14 Mitchell Co A J Strip punching and feeding apparatus
US3611500A (en) * 1968-10-01 1971-10-12 Gloucester Eng Co Inc Sheet forming apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US745505A (en) * 1902-12-12 1903-12-01 John Lee Method of cutting can ends.
US1439393A (en) * 1919-12-23 1922-12-19 Continental Can Co Method for cutting disks or blanks from untrimmed commercial sheets
US2446198A (en) * 1945-11-16 1948-08-03 American Can Co Method of cutting blanks
FR1123017A (fr) * 1955-03-02 1956-09-17 Ets Japy Freres Procédé de découpage de feuilles planes
US3383065A (en) * 1965-04-14 1968-05-14 Mitchell Co A J Strip punching and feeding apparatus
US3611500A (en) * 1968-10-01 1971-10-12 Gloucester Eng Co Inc Sheet forming apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5112427A (en) * 1988-09-22 1992-05-12 Dennison Systems Denmark Method and device for dispensing of labels
GB2311742A (en) * 1996-04-03 1997-10-08 Denso Corp A pressing Method
GB2311742B (en) * 1996-04-03 1999-02-03 Denso Corp A pressing method
USD552047S1 (en) * 2005-02-28 2007-10-02 Tokyo Electron Limited Process tube for manufacturing semiconductor wafers
CN102072397A (zh) * 2010-11-12 2011-05-25 丁振荣 金属带及其加工方法
CN103433957A (zh) * 2013-09-04 2013-12-11 东莞市飞新达精密机械科技有限公司 模切机的跳步控制方法
CN103433957B (zh) * 2013-09-04 2016-07-06 东莞市飞新达精密机械科技有限公司 模切机的跳步控制方法

Also Published As

Publication number Publication date
FR2130127A1 (en:Method) 1972-11-03
CH546103A (fr) 1974-02-28
DE2209927C3 (de) 1978-06-08
DE2209927A1 (de) 1972-10-05
FR2130127B1 (en:Method) 1977-07-08
DE2209927B2 (de) 1974-06-20

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