EP0068633A2 - Verfahren, Vorrichtung und Formrolle zum Formen von Material mit Zweirichtungsperiodizität - Google Patents

Verfahren, Vorrichtung und Formrolle zum Formen von Material mit Zweirichtungsperiodizität Download PDF

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Publication number
EP0068633A2
EP0068633A2 EP82302655A EP82302655A EP0068633A2 EP 0068633 A2 EP0068633 A2 EP 0068633A2 EP 82302655 A EP82302655 A EP 82302655A EP 82302655 A EP82302655 A EP 82302655A EP 0068633 A2 EP0068633 A2 EP 0068633A2
Authority
EP
European Patent Office
Prior art keywords
forming
wave
rolls
roll
periodicity
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.)
Withdrawn
Application number
EP82302655A
Other languages
English (en)
French (fr)
Other versions
EP0068633A3 (de
Inventor
Koryo Miura
Manabu Kiuchi
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.)
Japan Science and Technology Agency
Original Assignee
Research Development Corp of Japan
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 Research Development Corp of Japan filed Critical Research Development Corp of Japan
Publication of EP0068633A2 publication Critical patent/EP0068633A2/de
Publication of EP0068633A3 publication Critical patent/EP0068633A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling

Definitions

  • This invention relates to a roll forming method and apparatus therefor for continuously forming a structural material having a bidirectional periodicity.
  • the present inventor has previously proposed (in Japanese Patent Publication No. 54-23035) a structural material which is formed into a wave, each wave having trapezoidal wave head and wave bottom, said trapezoidal wave head and wave bottom being meandered in a zigzag or wave-like fashion within a surface formed by said wave head and wave bottom, and has a side inclined between the adjoining wave head and wave bottom, said side comprising a linearly woven surface having a bidirectional periodicity basically formed by a mother-line joining the wave head with the wave bottom.
  • the above-mentioned structural material has extremely excellent properties as follows:
  • the structural material can be used as an ornamental material without modification. Since a plane portion of the wave head comprises a joining surface, it can be joined with a single face plate to form a reinforcing plate having no directivity in strength. Two face plates may be joined to the wave head and wave bottom to form a sandwich construction whereby obtaining a structural material equal to a honeycomb structural material. A gap between the joined face plates is continuous to suitably restrict a flow of fluids, and a surface area is large. If this is utilized as a piping system, it may serve as a (" heat exchanging element. As described above, there are many uses.
  • a method using a press has heretofore been proposed to manufacture such bidirectional structural materials (For example, Japanese Patent Publication No. 52-44866).
  • Such a manufacturing method is an extrusion forming which mainly relies upon ductility of a workpiece, in which an increase in surface area of an extruded portion is covered by a decrease in wall thickness of a workpiece of said portion with the result that the wave head and wave bottom which are locally large in deformation are liable to result in excessive decrease in wall whichness and breakage.
  • a bidirectional structural material is formed at one effort by r. male and female forming rolls having the same wave-form as that of the bidirectional structural material as mentioned above tothereby obtain a forming device having a high productivity without being suffered from those disadvantages as noted above.
  • a material has a small portion to be restricted by rolls when it is processed, a folding effect of the material is brought forth at the time of forming, a formed article is shortened with respect to longitudinal and lateral lengths of the material to relieve the extrusion machining through that amount, and continuous forming at one effort is rendered possible.
  • the forming rolls are divided into a number of segments, each segment having a shape of a helical spur gear and a straight spur gear, which are combined to form a forming roll. Accordingly, the rolls may be produced very easily.
  • Fig. 1 is a perspective view of one example of a structural material 1 having a bidirectional periodicity formed by a forming device in accordance with the present invention, a zigzag vertical angle a formed between the wave head and wave bottom being 90°. Material is liable to be broken at the time of forming in the vicinity of zigzag top portions encircled by dotted lines, and in order to relieve deformation of said portions, the vertical angle a can be made to have 120 0 or a parallel portion 2 is provided in the vertical angle portion as shown in Fig. 2.
  • a roll for forming a structural material 1 shown in Fig. 1 or Fig. 2 from a flat plate such as metal is formed with forming tooth-forms associated with the surface of the roll in a zigzag fashion which shows only the wave head in Fig. 3.
  • a lateral type forming roll in which forming tooth-forms are continuous in an axial direction of the roll as shown in Fig. 3(a) and a longitudinal forming roll in which forming tooth-forms are continuous in a peripheral direction of the roll as shown in Fig. 3(b).
  • the lateral type forming roll is more realistic than the other in terms of fabrication as will be described hereinafter.
  • each segment is in the form of a helical spur gear 3 or a straight spur gear 4, which is slipped round a shaft 5 by means of a key or the like as is well known.
  • Each segment may be readily manufactured by a conventional technique for manufacturing gears.
  • a material 6 may be passed through between the pair of forming rolls as described to thereby continuously form a structural material 1 at one effort.
  • this forming method such formation seems to be rendered possible because a restricted portion by the rolls is small, a shrinkage of length about 10 to 30% is appeared in the lengthwise direction of the material 6 at the time of machining, and extrusion machining is relieved through that amount.
  • the wave height or pitch of the structural material 1 is not determined by the tooth height of the forming rolls 7, 8 but determined by a position 9 at which the tooth top touches with the material. Therefore, the depth of action between both the forming rolls 7, 8 may be adjusted to thereby manufacture a structural material different in pitch by the same forming device.
  • the wave-form of the structural material 1 has a sharpinclination at the front side in the moving direction of the material 5 and has a gentle inclination at the rear side thereof.
  • both the rolls are driven so as to equalize the gap of the forming tooth-form at front and rear.
  • the wave head and the wave bottom 10 of the wave-form of the structural material 1 are curved to fail to provide a plane. Therefore, it becomes difficult to utilize this for use in joining with the face plate as in the case of utilizing it as a heart-material for a sandwich structural material. Because of this, a plurality of forming stands are used and forming is accomplished by the forming roll 11, as shown in Fig. 7 (b) after which a sizing roll or a setting roll 12 may be used to improve a flatness of the wave head and wave bottom.
  • the inclined surface joining the wave head with the wave bottom has its mother-line which is not a straight line or which is not a linearly woven surface in a sense of accuracy. However, it is often the case that the strength is satisfactory without modification.
  • reference numeral 15 designates a gap adjusting means for the roll 13, which can be in the form of a suitable well-known mechanism such as a mechanism in which a bearing portion is moved up and down by a screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Catalysts (AREA)
EP82302655A 1981-06-18 1982-05-24 Verfahren, Vorrichtung und Formrolle zum Formen von Material mit Zweirichtungsperiodizität Withdrawn EP0068633A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9300281A JPS57209725A (en) 1981-06-18 1981-06-18 Roll forming method for two-directional structure material
JP93002/81 1981-06-18

Publications (2)

Publication Number Publication Date
EP0068633A2 true EP0068633A2 (de) 1983-01-05
EP0068633A3 EP0068633A3 (de) 1983-07-20

Family

ID=14070161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82302655A Withdrawn EP0068633A3 (de) 1981-06-18 1982-05-24 Verfahren, Vorrichtung und Formrolle zum Formen von Material mit Zweirichtungsperiodizität

Country Status (2)

Country Link
EP (1) EP0068633A3 (de)
JP (1) JPS57209725A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149844A3 (en) * 1983-12-30 1987-01-21 Nippon Petrochemicals Co., Ltd. Method and apparatus for continuously forming embossed sheets
WO2005058521A1 (en) * 2003-12-17 2005-06-30 Airbus Foldable mandrel for production of a single curvature folded core for a sandwich panel
WO2011109687A3 (en) * 2010-03-05 2012-01-05 Cornell University Bidirectional gear, method, and applications
CN113695437A (zh) * 2021-08-27 2021-11-26 重庆创新燃料电池技术产业研究院有限公司 一种超轻空冷堆矩形截面波纹板成型方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007175759A (ja) * 2005-12-28 2007-07-12 Usui Kokusai Sangyo Kaisha Ltd 波形フィン構造体の成形方法および成形装置
JP2013015110A (ja) * 2011-07-06 2013-01-24 Sakura Kogyo Kk 排ガス触媒装置におけるハニカム体の製造方法並びにこの方法によって製造されたハニカム体並びにこのハニカム体を適用した排ガス触媒装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793629A (en) * 1928-11-01 1931-02-24 William J Sandberg Strip-corrugating machine
US2290608A (en) * 1939-02-18 1942-07-21 Richard K Stevens Foil crumpling method and apparatus
US2769479A (en) * 1951-03-23 1956-11-06 Bishop And Babcock Mfg Company Rolls for corrugating metal strips
US3525138A (en) * 1968-04-09 1970-08-25 Gen Electric Method of making a humidifier evaporating element
ZA794126B (en) * 1978-08-15 1980-08-27 Covrad Ltd Apparatus for forming corrugated sheet material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149844A3 (en) * 1983-12-30 1987-01-21 Nippon Petrochemicals Co., Ltd. Method and apparatus for continuously forming embossed sheets
WO2005058521A1 (en) * 2003-12-17 2005-06-30 Airbus Foldable mandrel for production of a single curvature folded core for a sandwich panel
CN100402180C (zh) * 2003-12-17 2008-07-16 空中客车公司 用于制造夹板的单曲率折叠芯的可折叠型芯
US7458802B2 (en) 2003-12-17 2008-12-02 Airbus Foldable mandrel for production of a single curvature folded core for a sandwich panel
WO2011109687A3 (en) * 2010-03-05 2012-01-05 Cornell University Bidirectional gear, method, and applications
CN102869901A (zh) * 2010-03-05 2013-01-09 康奈尔大学 双向齿轮、方法、和应用
CN102869901B (zh) * 2010-03-05 2015-09-16 康奈尔大学 双向齿轮、方法、和应用
US9556947B2 (en) 2010-03-05 2017-01-31 Cornell University Bidirectional gear, method, and applications
CN113695437A (zh) * 2021-08-27 2021-11-26 重庆创新燃料电池技术产业研究院有限公司 一种超轻空冷堆矩形截面波纹板成型方法

Also Published As

Publication number Publication date
JPS57209725A (en) 1982-12-23
EP0068633A3 (de) 1983-07-20

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Inventor name: KIUCHI, MANABU

Inventor name: MIURA, KORYO