IL41057A - Method and device for the precision shaping of a metal part by pressing - Google Patents
Method and device for the precision shaping of a metal part by pressingInfo
- Publication number
- IL41057A IL41057A IL41057A IL4105772A IL41057A IL 41057 A IL41057 A IL 41057A IL 41057 A IL41057 A IL 41057A IL 4105772 A IL4105772 A IL 4105772A IL 41057 A IL41057 A IL 41057A
- Authority
- IL
- Israel
- Prior art keywords
- shaping
- cavity
- upsetting
- punches
- length
- Prior art date
Links
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
- B21D53/00—Making other particular articles
- B21D53/78—Making other particular articles propeller blades; turbine blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K3/00—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like
- B21K3/04—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like blades, e.g. for turbines; Upsetting of blade roots
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Claims (6)
1. Method of accurately and homogeneously shaping a metal part having a substantially constant cross sectional surface area throughout its length, from an initial blank, section or rough cut shaped or machined, by pressing same in a tool, this method being characterised in that* a) the length of the initial blank to be shaped is somewhat greater than that desired for the end product, as a function of the necessary reduction in length of the part, with substantially constant cross sectional surface areas, but with transverse dimensions (width and thickness) such that upon completion of the first step shaping operations, these last mentioned dimensions are slightly inferior, at all points* to those of the desired part; b) in a first step, the shaping operation proper is performed by applying to the part in a direction substantially perpendicular to the longitudinal axis thereof a force suf icient for shaping the part between one or two dies and one or more punches reserving therebetween a cavity capable of providing the end shape of the part to be obtained after the longitudinal elastic release thereof, the shaping stroke being limited by external stop members f c) in a second step, without relieving the rigid closing of said cavity, the part contained therein is stabilised by applying to one or either end of said part in the direction of the output axes thereof an upsetting force sufficient to cause said part to be shortened to a limited extend determined by stop means or an antagonistic force, and to cause the very slight swelling effect resulting from the application of said upsetting being relieved before or simultaneously with the cavity closing stress.
2. A device for shaping parts acoording to the method disclosed in Claim 1, characterised in that it comprises tool means consisting of one or a plurality of punches and one or a plurality of dies, and possibly laterally movable members* adapted to form therebetween a cavity having a shape consistent with the part to be obtained before its elastic expansion, said cavity being open at least one of its ends, stop members adapted to block the yuneh or punches and said lateral members in a position such that said cavity closed under stress has the shape of the desired part before its elastic expansion, and, registering with the open and or ends of said cavity, an upsetting member adapted to exert an upsetting force by engaging substantially the whole of the cross sectional surface of the ends of said part so as to reduoe the length of said part to an extent limited by a stop member or by the force applied thereto*
3. · Device acoording to claim 2, characterised in that the cavity formed between the punch or punches and the die or dies has the same length as the part to be obtained, before its elastic expansion, said movable upsetting member being adapted to abute the open end of said tool means*
4. * Device acoording to claim 2, characterised In that the cavity formed between said punch or punches and said die or dies has a greater length than that of the desired final part, and that the upsetting member is adapted to penetrate through the corresponding end of said cavity for exerting an upsetting force against the corresponding end of said part subsequent to the shaping thereof*
5. De ice according to any of claims 2 to k, characterised In that said shaping tool means are adapted to trim t¾e ends of the blank subsequent to the shaping thereof and before its stabilisation by upsetting.
6. Shaping device according to any of claims 2 to 5, characterised in that said punc means and/or die means are subdivided into a plurality of sections held initially in a spaced relationship, for example by spring means, but adapted to be subsequently put in mutual contact, 7o Method substantially as described hereinabove with reference to the accompanying drawings. 8, Shaping device substantially as described hereinabove and illustrated in the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7144681A FR2163320B1 (en) | 1971-12-13 | 1971-12-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
IL41057A0 IL41057A0 (en) | 1973-02-28 |
IL41057A true IL41057A (en) | 1976-05-31 |
Family
ID=9087360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL41057A IL41057A (en) | 1971-12-13 | 1972-12-12 | Method and device for the precision shaping of a metal part by pressing |
Country Status (10)
Country | Link |
---|---|
US (1) | US3845651A (en) |
BE (1) | BE792138A (en) |
CH (1) | CH561573A5 (en) |
DE (1) | DE2260742C3 (en) |
FR (1) | FR2163320B1 (en) |
GB (1) | GB1419255A (en) |
IL (1) | IL41057A (en) |
IT (1) | IT971800B (en) |
NL (1) | NL7216955A (en) |
SE (1) | SE389047B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2396605A1 (en) * | 1977-07-06 | 1979-02-02 | Vau Paul | Metal workpiece precision press - uses knee levers mounted in plate controlling dies to increase force exerted |
US4870524A (en) * | 1984-07-06 | 1989-09-26 | Furukawa Aluminum Co., Ltd. | Substrate for rigid disk storage media |
JPH0638965B2 (en) * | 1985-12-28 | 1994-05-25 | 古河アルミニウム工業株式会社 | Method for manufacturing memory disk substrate |
US4825680A (en) * | 1985-12-28 | 1989-05-02 | Furukawa Aluminum Co., Ltd. | Method of manufacturing metal substrates for disk for memory storage media |
JPH0638964B2 (en) * | 1985-12-28 | 1994-05-25 | 古河アルミニウム工業株式会社 | Method for manufacturing memory disk substrate |
US5335526A (en) * | 1991-01-29 | 1994-08-09 | Garrison Marvin C | Method of manufacturing substrates for memory disks |
JP2004006514A (en) * | 2002-05-31 | 2004-01-08 | Oki Electric Ind Co Ltd | Basic cell of gate array semiconductor device, gate array semiconductor device, and layout method of gate array semiconductor device |
NO324165B1 (en) * | 2004-02-12 | 2007-09-03 | Raufoss Tech As | A sniping process |
DE102004062174A1 (en) * | 2004-12-17 | 2006-06-22 | Rolls-Royce Deutschland Ltd & Co Kg | Process for producing high strength components by precision forging |
FR2891480B1 (en) * | 2005-10-04 | 2008-04-04 | Auto Chassis Internat Snc Snc | TOOLING FOR MANUFACTURING A CLOSED SECTION FRAGMENT COMPRISING A MATRIX AND / OR A PUNCH OF ADAPTABLE LENGTH AND CORRESPONDING FABRICATION METHOD. |
DE102007009937A1 (en) | 2007-03-01 | 2008-09-04 | Schuler Smg Gmbh & Co. Kg | Metal plate shaping heats the plate to a given temperature, which is then clamped between two cooling elements before pressing |
DE102010009811B4 (en) * | 2010-03-02 | 2013-05-16 | Mtu Aero Engines Gmbh | Bending device for bending a blade of a blade ring |
GB201021373D0 (en) * | 2010-12-16 | 2011-01-26 | Rolls Royce Plc | A clipping die for clipping a component |
GB201609988D0 (en) * | 2016-06-08 | 2016-07-20 | Rolls Royce Plc | Datum positioning in dies |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US426652A (en) * | 1890-04-29 | Method of manufacturing axles | ||
US524092A (en) * | 1894-08-07 | Machine for making axles |
-
0
- BE BE792138D patent/BE792138A/en not_active IP Right Cessation
-
1971
- 1971-12-13 FR FR7144681A patent/FR2163320B1/fr not_active Expired
-
1972
- 1972-12-07 CH CH1780672A patent/CH561573A5/xx not_active IP Right Cessation
- 1972-12-11 GB GB5704172A patent/GB1419255A/en not_active Expired
- 1972-12-12 SE SE7216172A patent/SE389047B/en unknown
- 1972-12-12 IL IL41057A patent/IL41057A/en unknown
- 1972-12-12 DE DE2260742A patent/DE2260742C3/en not_active Expired
- 1972-12-13 NL NL7216955A patent/NL7216955A/xx active Search and Examination
- 1972-12-13 US US00314677A patent/US3845651A/en not_active Expired - Lifetime
- 1972-12-13 IT IT32830/72A patent/IT971800B/en active
Also Published As
Publication number | Publication date |
---|---|
NL7216955A (en) | 1973-06-15 |
US3845651A (en) | 1974-11-05 |
BE792138A (en) | 1973-03-16 |
GB1419255A (en) | 1975-12-24 |
IT971800B (en) | 1974-05-10 |
FR2163320A1 (en) | 1973-07-27 |
SE389047B (en) | 1976-10-25 |
IL41057A0 (en) | 1973-02-28 |
FR2163320B1 (en) | 1974-12-20 |
DE2260742B2 (en) | 1980-06-12 |
CH561573A5 (en) | 1975-05-15 |
DE2260742C3 (en) | 1981-02-19 |
DE2260742A1 (en) | 1973-06-14 |
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