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公开(公告)号:US4413496A
公开(公告)日:1983-11-08
申请号:US311003
申请日:1981-10-13
申请人: Donald J. Diemer , Ralph D. Delio
发明人: Donald J. Diemer , Ralph D. Delio
IPC分类号: B62D55/14 , B21J5/02 , B21J13/02 , B21K1/02 , B21K1/28 , B21K23/04 , B62D55/32 , B62D65/00 , F16L47/22
摘要: A method of forging track tractor rollers and other multi-flanged rollers, which comprises busting of a billet to a preformed coned end and placing a split ring around the coned end of the busted and preformed billet, and inserting the same in a stepped blocking die to form flanges by blocking against the split ring and the stepped die for one flange and between the top die on the other flange and removing the split ring and billet. When placed in a finishing die, the hollow of the roller is formed by a displacement method which forces the metal into the flanges against the split ring.
摘要翻译: 一种锻造轨道拖拉机辊和其他多凸缘辊的方法,其包括将坯料破碎成预成型的锥形端,并将裂口环围绕着被破坏和预制的坯料的锥形端部,并将其插入阶梯式阻塞模具 通过阻挡开口环和用于一个凸缘的阶梯式模具并在另一个凸缘上的顶模之间形成凸缘,并且移除开口环和坯料。 当放置在精加工模具中时,辊的中空通过移动方法形成,该方法迫使金属进入凸缘抵靠开口环。
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公开(公告)号:US4130005A
公开(公告)日:1978-12-19
申请号:US824927
申请日:1977-08-15
申请人: Allan D. Haines
发明人: Allan D. Haines
CPC分类号: B21K1/02
摘要: A method and apparatus of cold forming is disclosed for improving die life. During a first phase a workpiece is initially engaged between a pair of dies with a sufficiently low force and velocity level to reduce die errosion but with a sufficiently high level to produce limited deformation of the workpiece and provide an area of mating engagement between the workpiece and the tool and die. During a second phase the workpiece is subjected to substantially higher deforming force and velocity levels and is further deformedto the desired shape. Such area of mating engagement is sufficiently large to reduce errosion producing localized pressures on the tool and die during such second phase. The disclosed machine is a ball header with the movable die mounted directly on the machine frame rather than on the reciprocating slide. The position of the movable die is controlled by a cam driven pusher so that the movable die position is independent of the position of the reciprocating slide. In such machine a workpiece is initially gripped during such first phase while the movement of the tool is controlled by the cam. In the second phase the tool is driven forward by the crank driven slide.
摘要翻译: 公开了一种用于提高模具寿命的冷成型方法和装置。 在第一阶段期间,工件最初以足够低的力和速度水平接合在一对模具之间以减少模具侵蚀,但是具有足够高的水平以产生工件的有限变形并提供工件与工件之间的配合接合面积 工具和模具。 在第二阶段期间,工件受到基本上更高的变形力和速度水平的影响,并进一步变形到所需的形状。 这种配合接合面积足够大以减少在这种第二阶段期间在工具和模具上产生局部压力的侵蚀。 所公开的机器是球头,其中可移动模具直接安装在机架上,而不是在往复式滑块上。 可移动模具的位置由凸轮驱动的推动器控制,使得可动模具位置与往复滑动件的位置无关。 在这样的机器中,工具在这样的第一阶段期间被初始地夹紧,同时工具的运动由凸轮控制。 在第二阶段,刀具由曲柄驱动的滑块向前驱动。
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公开(公告)号:US3965549A
公开(公告)日:1976-06-29
申请号:US516017
申请日:1974-10-18
申请人: William Melville
发明人: William Melville
CPC分类号: B24B31/0218 , B21K1/02 , Y10T29/49712
摘要: Method and apparatus for making lead shot by barrel tumbling a charge of non-spherical preforms in a liquid coolant, involving the evaporation and condensing of the coolant while the preforms are progressively deformed to spherical shape.
摘要翻译: 用于通过桶翻滚在液体冷却剂中的非球形预制件的装料的方法和装置,包括在预成型件逐渐变形为球形时冷却剂的蒸发和冷凝。
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公开(公告)号:US3899912A
公开(公告)日:1975-08-19
申请号:US37512273
申请日:1973-06-29
申请人: GLAENZER SPICER SA
发明人: ORAIN MICHEL
CPC分类号: B21K1/02 , B23P15/003 , B23P2700/11 , F16C23/084 , F16C33/366 , F16D3/202 , F16D2250/0023 , Y10T29/49565 , Y10T29/49693
摘要: A method for cold-forming rolling elements in the form of bodies of revolution with external rolling surfaces having straight or curved generatrices extending between portion of relatively large and relatively small diameter uses a generally cylindrical blank. The diameter of the blank is substantially equal to the greatest diameter of the element to be formed. The blank is forced into a die cup having an internal profile which is identical to the rolling surface profile, against a counter-force which increases as the blank is forced into the cup. The penetration of the blank into the cup is halted at a predetermined stage. The invention is applicable to forming bearing rollers.
摘要翻译: 具有在相对较大且相对较小直径的部分之间延伸的具有直的或弯曲的母线的具有外部滚动表面的旋转体形式的滚动元件的冷成型方法使用大致圆柱形的坯料。 坯料的直径基本上等于要形成的元件的最大直径。 坯料被迫进入具有与滚动表面轮廓相同的内部轮廓的模具杯,抵抗在空白被迫进入杯子时增加的反作用力。 将坯料穿入杯子停止在预定阶段。 本发明适用于成形轴承辊。
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公开(公告)号:US3791188A
公开(公告)日:1974-02-12
申请号:US3791188D
申请日:1971-10-26
申请人: DEUSSEN E
发明人: DEUSSEN E
摘要: A method of die-forming parts so that, in their final shape, they have a substantially continuous grain structure, whereby a cylindrical blank is shaped into a spherical part by drawing the grain line ends together in two polar areas, and the spherical part is reshaped into a ring of final dimensions without breaking any of the grain lines.
摘要翻译: 一种模制部件的方法,使得它们的最终形状具有基本上连续的晶粒结构,由此通过在两个极性区域中将晶粒线端部拉在一起而将圆柱形坯料成形为球形部分,并且球形部分 重塑成最终尺寸的环,而不会破坏任何颗粒线。
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公开(公告)号:US3731359A
公开(公告)日:1973-05-08
申请号:US3731359D
申请日:1972-02-24
申请人: GLENN E
发明人: GLENN E
IPC分类号: B21D51/08 , B21D53/10 , B21K1/02 , B23P15/00 , F16C33/32 , B23P11/00 , B21D39/02 , B23P19/04
CPC分类号: F16C33/32 , B21D51/08 , B21D53/10 , B21K1/02 , B23P15/00 , Y10T29/49714 , Y10T29/49893 , Y10T29/53109
摘要: The apparatus and process for making hollow ball bearings which comprises means to stamp round metal blanks from flat metal stock, stamping round metal blanks, forming means to form the blanks, drawing and forging the blanks to establish pairs of concavo-convex hemispheres, spaced relatively shiftable welding electrodes with hemisphere receiving welding seat, arranging the pairs of hemispheres between two electrode welding seats with their concaved surfaces in opposed relationship, urging the rim portions of the opposed hemispheres into pressure engagement with each other and welding them together to form hollow ball bearings.
摘要翻译: 用于制造中空球轴承的装置和方法包括从平金属坯料上冲压圆形金属坯料,冲压圆形金属坯料,形成装置以形成坯料的装置和方法,拉拔和锻造坯料以建立成对的凹凸半球,间隔开 具有半球接收焊接座的可移动焊接电极,将两对电极对的两对电极座之间的对置相对的两个电极焊接座之间的凹面布置成相对的两个半球的边缘部分彼此压力接合并焊接在一起形成空心球轴承 。
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公开(公告)号:US3448601A
公开(公告)日:1969-06-10
申请号:US3448601D
申请日:1967-07-26
申请人: LAWRENCE D HOLUM
发明人: HOLUM LAWRENCE D
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公开(公告)号:US3204320A
公开(公告)日:1965-09-07
申请号:US22022262
申请日:1962-08-29
发明人: ECKSTEIN GEORGE R , FOOTE DONALD S
IPC分类号: B21K1/02
CPC分类号: B21K1/02 , Y10T29/49694 , Y10T29/49712
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公开(公告)号:US2816466A
公开(公告)日:1957-12-17
申请号:US19811450
申请日:1950-11-29
申请人: PANGBORN CORP
IPC分类号: B21K1/02
CPC分类号: B21K1/02 , Y10T29/49712
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公开(公告)号:US2800814A
公开(公告)日:1957-07-30
申请号:US37160453
申请日:1953-07-31
发明人: LEWIS JR THOMAS E
CPC分类号: B21K27/02 , B21K1/02 , Y10T29/512
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