序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
41 METHOD FOR PREPARING HIGHLY-DEFORMABLE TITANIUM AND TITANIUM-ALLOY ONE-PIECE FASTENERS US14569031 2014-12-12 US20150096166A1 2015-04-09 Steven G. Keener
A method of forming a fastener may include inserting a blank precursor into a bore of a forming die having an enlarged bore portion. The method may further include applying a first axial compression force to the blank precursor, and forming a cold-worked head section and an enlarged shank portion on the blank precursor corresponding to the enlarged bore portion. The enlarged shank portion may have a nominal shank portion extending therefrom. The method may additionally include inserting the nominal shank portion into a bore of a final reduction die, applying a second axial compression force to the enlarged shank portion, and urging the enlarged shank portion into the bore of the final reduction die. The method may also include reducing a cross-sectional area of the enlarged shank portion by approximately 2 to 5 percent to form a cold-worked shank section.
42 METHOD FOR PRODUCING AN ATTACHMENT ELEMENT US14126453 2012-06-20 US20140126978A1 2014-05-08 Pierre Auriol
The invention relates to a method for producing an attachment element (R) comprising a shaft (100) having a first end provided with a head (200) and a second end that is intended to be deformed in order to form a button (300) providing a bearing surface opposite the surface formed by the head (200), said shaft (100) having a nominal diameter (D). The method is characterised in that the element is sized such that the minimum length (L) of the shaft (100) to be deformed to form the button (300) is no less than 1.25 times the nominal diameter (D) of the shaft (100). The invention is suitable for use in the production of attachment elements, such as rivets.
43 METHOD FOR PREPARING HIGHLY-DEFORMABLE TITANIUM AND TITANIUM-ALLOY ONE-PIECE FASTENERS AND FASTENERS PREPARED THEREBY US13299228 2011-11-17 US20130125376A1 2013-05-23 Steven G. Keener
A fastener has a cold-worked head section, a cold-worked shank section, and a ductile shank section extending from the cold-worked shank section to a tail end portion of the fastener.
44 Clinch pin fastener US12757480 2010-04-09 US08297899B2 2012-10-30 Michael Maloney
A clinch-type fastener is formed by simultaneously creating an undercut during the same forging that creates the head and displacer of the fastener. A fastener blank is compressed end-to-end between top and bottom dies whereby the axial compression of a blank causes the outward bulging of the shank at its midline. Simultaneously, a tapered end point and a tangential interference band are formed provided by a curvilinear-shaped bulge in the shank. As the bulge is formed an undercut is created between the bulge and a shoulder which extends downwardly from a head of the fastener. This method of formation and the fastener produced thereby are particularly suited to the manufacture of small clinch pins having a diameter in the range of 1.0 mm.
45 Method for preparing pre-coated, ultra-fine, submicron grain high-temperature aluminum and aluminum-alloy components and components prepared thereby US11110551 2005-04-20 US08137755B2 2012-03-20 Steven G. Keener; Patrick B. Berbon
The invention is a high-strength, pre-coated, aluminum or aluminum-alloy component comprising an aluminum or aluminum-alloy article having ultra-fine, submicron grain microstructure and an organic coating of phenolic resin applied to the surface of the article. The article is prepared from a coarse grain aluminum or aluminum-alloy material that is cryomilled into an ultra-fine, submicron grain material, degassed, and densified. The densified material is formed into an article, and coated with an organic coating containing phenolic resin prior to installation or assembly.
46 Hybrid Fastening System US12206283 2008-09-08 US20090003964A1 2009-01-01 Steven G. Keener; Cesare Peralta
A hybrid fastening system comprising a female fastener component, i.e., swage collar, fabricated from a titanium or titanium-alloy material, preferably Ti-3Al-2.5V, and a mating titanium or titanium-alloy material male fastener component, i.e., threaded pin, each preferably pre-coated with an organic coating material comprising an organic, phenolic resin. The threaded pin component is installed through two or more structural components to be joined. The swage collar component is then deformed or swaged onto the threads of the pre-coated threaded pin component to achieve the same, if not improved, fastener/joint performance characteristics of existing lockbolt systems using aluminum-alloy material swage collar components.
47 Hybrid fastening system and associated method of fastening US10939835 2004-09-13 US07465234B2 2008-12-16 Steven G. Keener; Cesare Peralta
A hybrid fastening system comprising a female fastener component, i.e., swage collar, fabricated from a titanium or titanium-alloy material, preferably Ti-3A1-2.5V, and a mating titanium or titanium-alloy material male fastener component, i.e., threaded pin, each preferably pre-coated with an organic coating material comprising an organic, phenolic resin. The threaded pin component is installed through two or more structural components to be joined. The swage collar component is then deformed or swaged onto the threads of the pre-coated threaded pin component to achieve the same, if not improved, fastener/joint performance characteristics of existing lockbolt systems using aluminum-alloy material swage collar components.
48 Rivets and methods for their production and use US10204816 2001-02-26 US06877646B2 2005-04-12 Cedric Berkeley Paynter
There is provided self piercing rivet comprising a substantially planar metal body portion (160) having deformable tabs (161) symmetrically disposed about a slit (162) as per the first embodiment. The upper portion of the body portion (160) is provided with a V-shaped recess (163) diverging from a point (164) adjacent the centreline of the body portion (160) and terminating at the upper edge (165) of the body portion (160). The V-shaped recess (163) divides the upper portion of the body portion (160) into head tabs (166) disposed to each side of the body portion (160). The upper remaining edges of the head tabs (166) enable the rivet to be partially driven and then set by deformation of the deformable tabs (161) and the head tabs (166) against respective sides of the riveted workpiece. Methods of producing the rivets and tools for their use are also provided.
49 Method of preparing ultra-fine grain metallic articles and metallic articles prepared thereby US10331672 2002-12-30 US20040123638A1 2004-07-01 Steven G. Keener; Max R. Runyan
An apparatus and method are provided for angularly extruding a workpiece through a die to form blanks and articles having refined grain structure. The die is also used to form the workpiece to a desired shape, such as a cylinder. The angular extrusion method can be used in place of some heat treatments, thereby lowering the cost and time for manufacturing articles. The method is compatible with materials with high strength-to-weight ratios such as aluminum, titanium, and alloys thereof. The blanks can be used to form articles having favorable mechanical properties such as strength, toughness, formability, and resistance to fatigue, corrosion, and thermal stresses.
50 Rivets and rivet manufacturing methods US09186711 1998-11-05 US06267684B1 2001-07-31 Ralph Luhm
The present invention comprises aluminum solid rivets and methods of manufacturing aluminum solid rivets for aircraft and other demanding applications to provide rivets with high strength and excellent driveabiltity while improving the rivets resistance to fatigue and stress corrosion cracking. In accordance with the method, an aluminum rivet blank approximately the same diameter as the head of the finished rivet is used. This rivet blank is forced into a die to extrude the tapered region and the shank of the finished rivet. The fabrication process provides more uniform cold working at the junction of the shank and the tapered region of the rivet, and better orients the flow lines in this region. The process also can provide a superior surface finish, and may be suitable for use in wet wing fabrication without further processing for improved surface finish. Alternate embodiments are disclosed.
51 Method for preparing pre-coated aluminum alloy articles and articles prepared thereby US09305500 1999-05-05 US06221177B1 2001-04-24 Steven G. Keener
An aluminum-alloy article such as a fastener is prepared by providing an aluminum-alloy article precursor that is not in its final heat-treated state, and in one form is in its solution treated/annealed state. A curable organic coating material is also provided. The method includes anodizing the article precursor, preferably in chromic acid solution and without chemical sealing during anodizing, applying the organic coating material to the aluminum-alloy article precursor, and precipitation heat-treating the coated aluminum article precursor to its final heat-treated state, thereby simultaneously curing the organic coating. If the aluminum alloy temper is of the naturally aging type, it is optionally lightly deformed prior to precipitation treatment aging. The approach may also be applied to articles that are not solution treated/annealed and aged, by first overly deforming the article precursor so that the curing treatment of the coating also partially anneals the article precursor to the final desired deformation state.
52 Method for preparing pre-coated aluminum articles and articles prepared thereby US726792 1996-10-07 US5944918A 1999-08-31 Steven G. Keener
An aluminum-alloy article such as a fastener is prepared by providing an aluminum-alloy article that is not in its final heat-treated state, and is preferably in its annealed state. A curable organic coating material is also provided. The method includes applying the organic coating material to the aluminum-alloy article, and heat-treating the coated aluminum article to its final heat-treated state, thereby simultaneously curing the organic coating.
53 Rivet making method US740923 1976-11-11 US4052763A 1977-10-11 Albert Dunkin
A rivet making machine and method in which a stationary set of angularly spaced head forming tools and a ram supported reciprocable set of body working tools are aligned at angularly spaced stations with each other and with a set of body dies carried by a rotatable indexing disc for successive positioning at the work stations. The body dies are independently movable axially of the indexing plate as necessary for cooperation of the head forming and body working tools on a blank carried by each body die. Blank cut-off is effected by a shearing die pair, one die pair being established at the end of each body die opposite the end thereof cooperating with the head forming tools. The other of the shearing die pair may be a fixed die in which relative movement of the shearing die pair is accomplished by indexing movement of the body dies. Alternatively, a shearing tool establishing the other die of the pair may be moved independently of body die indexing.
54 Rivet making machine US651149 1976-01-21 US4019432A 1977-04-26 Albert Dunkin
A rivet making machine and method in which a stationary set of angularly spaced head forming tools and a ram supported reciprocable set of body working tools are aligned at angularly spaced stations with each other and with a set of body dies carried by a rotatable indexing disc for successive positioning at the work stations. The body dies are independently movable axially of the indexing plate as necessary for cooperation of the head forming and body working tools on a blank carried by each body die. Blank cut-off is effected by a shearing die pair, one die pair being established at the end of each body die opposite the end thereof cooperating with the head forming tools. The other of the shearing die pair may be a fixed die in which relative movement of the shearing die pair is accomplished by indexing movement of the body dies. Alternatively, a shearing tool establishing the other die of the pair may be moved independently of body die indexing.
55 Manufacture of composite materials US3770015D 1970-11-24 US3770015A 1973-11-06 FITZGERALD W
A welded composite formed by cutting and heating continuous lengths of wire and immediately transferring the lengths to a die where the lengths are joined by pressing at high pressure and the joined lengths are then forced at least a portion of the way out of the die where heading operations are performed.
56 Piercing and slotting of drive rivets US3445870D 1967-03-27 US3445870A 1969-05-27 KOLEC ROBERT F
57 Method for making a headed fastener US82353959 1959-06-29 US3157893A 1964-11-24 DICKIE WILLIAM R
58 Wireworking machine US6310748 1948-12-02 US2560794A 1951-07-17 EMIL GUT
59 Die structure US24395938 1938-12-05 US2227810A 1941-01-07 HARVEY MITCHELL
60 CONNECTING ELEMENT AND METHOD FOR MANUFACTURING A CONNECTING ELEMENT US13558658 2012-07-26 US20130115027A1 2013-05-09 Roland WENDT; Michael BADENT; Wolfgang PFEIFFER; Ewald WENNEHORST; Karlheinz MUNZ
A connecting element for forming a punch-riveted connection of at least two component sections is proposed, wherein a foot section has at its free end a foot base with a basic shape which is cylindrical or at least approximated to the cylindrical shape. According to the invention, an annular circumferential elevated portion is formed in the foot section between the foot base and the shaft section.
QQ群二维码
意见反馈