Method of and apparatus for forming a disc-shaped blank
There is provided a method for forming a disc-shaped blank in which a disc-shaped thin plate material is, at an outer peripheral portion thereof, swaged towards an axial side of the plate material with a roll die to thicken the outer peripheral portion and is shaped into a cross-sectional configurat...
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| creator | YAMANAKA SHIGEAKI |
| description | There is provided a method for forming a disc-shaped blank in which a disc-shaped thin plate material is, at an outer peripheral portion thereof, swaged towards an axial side of the plate material with a roll die to thicken the outer peripheral portion and is shaped into a cross-sectional configuration corresponding to that of a dish, the method comprises the steps of: sandwiching and securing between a pair of sandwiching members the disc-shaped thin plate material except for the outer peripheral portion including a swaging portion; swaging the swaging portion projecting from the sandwiching members so that an outermost end of the swaging portion may be shaped into a cross-sectional configuration corresponding to that of an arrowhead while a root portion of the swaging portion has the same thickness as the original thin thickness of the plate material; thereafter, bending the outer peripheral portion including the thick-walled swaged portion at the root portion thereof from one side surface of the disc-shaped thin plate material towards the other side direction and forming a bent portion into an L-shaped configuration in cross section so that the bent portion may lie within a predetermined width; and thereafter, forging the bent portion in a closed state so that an inner surface and outer surface thereof may each have predetermined dimensions. |
| format | Patent |
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swaging the swaging portion projecting from the sandwiching members so that an outermost end of the swaging portion may be shaped into a cross-sectional configuration corresponding to that of an arrowhead while a root portion of the swaging portion has the same thickness as the original thin thickness of the plate material; thereafter, bending the outer peripheral portion including the thick-walled swaged portion at the root portion thereof from one side surface of the disc-shaped thin plate material towards the other side direction and forming a bent portion into an L-shaped configuration in cross section so that the bent portion may lie within a predetermined width; and thereafter, forging the bent portion in a closed state so that an inner surface and outer surface thereof may each have predetermined dimensions.</description><edition>6</edition><language>eng</language><subject>FORGE FURNACES ; FORGING ; HAMMERING ; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS ; MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; PERFORMING OPERATIONS ; PRESSING METAL ; PUNCHING METAL ; RIVETING ; TRANSPORTING ; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><creationdate>1997</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19971223&DB=EPODOC&CC=US&NR=5699689A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76516</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19971223&DB=EPODOC&CC=US&NR=5699689A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YAMANAKA; SHIGEAKI</creatorcontrib><title>Method of and apparatus for forming a disc-shaped blank</title><description>There is provided a method for forming a disc-shaped blank in which a disc-shaped thin plate material is, at an outer peripheral portion thereof, swaged towards an axial side of the plate material with a roll die to thicken the outer peripheral portion and is shaped into a cross-sectional configuration corresponding to that of a dish, the method comprises the steps of: sandwiching and securing between a pair of sandwiching members the disc-shaped thin plate material except for the outer peripheral portion including a swaging portion; swaging the swaging portion projecting from the sandwiching members so that an outermost end of the swaging portion may be shaped into a cross-sectional configuration corresponding to that of an arrowhead while a root portion of the swaging portion has the same thickness as the original thin thickness of the plate material; thereafter, bending the outer peripheral portion including the thick-walled swaged portion at the root portion thereof from one side surface of the disc-shaped thin plate material towards the other side direction and forming a bent portion into an L-shaped configuration in cross section so that the bent portion may lie within a predetermined width; and thereafter, forging the bent portion in a closed state so that an inner surface and outer surface thereof may each have predetermined dimensions.</description><subject>FORGE FURNACES</subject><subject>FORGING</subject><subject>HAMMERING</subject><subject>MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS</subject><subject>MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS</subject><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>PERFORMING OPERATIONS</subject><subject>PRESSING METAL</subject><subject>PUNCHING METAL</subject><subject>RIVETING</subject><subject>TRANSPORTING</subject><subject>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD3TS3JyE9RyE9TSMxLUUgsKEgsSiwpLVZIyy8C4dzMvHSFRIWUzOJk3eKMxILUFIWknMS8bB4G1rTEnOJUXijNzSDv5hri7KGbWpAfn1pckJicmpdaEh8abGpmaWlmYeloTFgFAOBsLNE</recordid><startdate>19971223</startdate><enddate>19971223</enddate><creator>YAMANAKA; SHIGEAKI</creator><scope>EVB</scope></search><sort><creationdate>19971223</creationdate><title>Method of and apparatus for forming a disc-shaped blank</title><author>YAMANAKA; SHIGEAKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US5699689A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>FORGE FURNACES</topic><topic>FORGING</topic><topic>HAMMERING</topic><topic>MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS</topic><topic>MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS</topic><topic>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>PERFORMING OPERATIONS</topic><topic>PRESSING METAL</topic><topic>PUNCHING METAL</topic><topic>RIVETING</topic><topic>TRANSPORTING</topic><topic>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</topic><toplevel>online_resources</toplevel><creatorcontrib>YAMANAKA; SHIGEAKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YAMANAKA; SHIGEAKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method of and apparatus for forming a disc-shaped blank</title><date>1997-12-23</date><risdate>1997</risdate><abstract>There is provided a method for forming a disc-shaped blank in which a disc-shaped thin plate material is, at an outer peripheral portion thereof, swaged towards an axial side of the plate material with a roll die to thicken the outer peripheral portion and is shaped into a cross-sectional configuration corresponding to that of a dish, the method comprises the steps of: sandwiching and securing between a pair of sandwiching members the disc-shaped thin plate material except for the outer peripheral portion including a swaging portion; swaging the swaging portion projecting from the sandwiching members so that an outermost end of the swaging portion may be shaped into a cross-sectional configuration corresponding to that of an arrowhead while a root portion of the swaging portion has the same thickness as the original thin thickness of the plate material; thereafter, bending the outer peripheral portion including the thick-walled swaged portion at the root portion thereof from one side surface of the disc-shaped thin plate material towards the other side direction and forming a bent portion into an L-shaped configuration in cross section so that the bent portion may lie within a predetermined width; and thereafter, forging the bent portion in a closed state so that an inner surface and outer surface thereof may each have predetermined dimensions.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | FORGE FURNACES FORGING HAMMERING MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PRESSING METAL PUNCHING METAL RIVETING TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL |
| title | Method of and apparatus for forming a disc-shaped blank |
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