公开(公告)号：US5104444A

公开(公告)日：1992-04-14

申请号：US390256

申请日：1989-08-07

申请人： Masahiko Shioda ,  Masashi Arita ,  Katsuji Tanizaki ,  Koue Ohdawa ,  Takeshi Sakai

发明人： Masahiko Shioda ,  Masashi Arita ,  Katsuji Tanizaki ,  Koue Ohdawa ,  Takeshi Sakai

IPC分类号： C22C21/02 ,  C22C1/04 ,  C22C21/00 ,  F16C33/12

CPC分类号： C22C1/0416 ,  C22C21/003 ,  F16C33/121 ,  Y10T428/12014

摘要： An aluminum alloy is prepared from an aluminum alloy powder having a composition of:lubricating componentPb: 3 to 15 Wt %;hardening componentSi: 1 to 12 Wt %;rainforcement componentone or more selected among Cu, Cr, Mg, Mn, NiZn, Fe and: 0.2 to 5.0 Wt %;and remainder of aluminum as principal material or matrix.To the aluminum alloy powder set forth above, powder state Pb in 3 to 12 Wt % is added. With the mixture of the aluminium alloy powder and Pb powder, a billet is formed. For the billet, extrustion process is performed in a extrusion ratio greater than or equal to 40. In the extruded block, Si particle dispersed in the aluminum matrix is in a grain size smaller than or equal to 12 .mu.m. Furthermore, at least of half of added Pb power particle is dispersed to have greater than or equal to 0.74 of circularity coefficient.

公开(公告)号：US4546635A

公开(公告)日：1985-10-15

申请号：US456785

申请日：1983-01-10

申请人： Masashi Arita ,  Shigeo Nakazawa

发明人： Masashi Arita ,  Shigeo Nakazawa

IPC分类号： B21C23/10 ,  B21K1/30 ,  B21C23/00

CPC分类号： B21K1/30

摘要： A gear is formed in a gear-forming apparatus including a die block formed with an axial bore and a plurality of teeth radially projecting into the bore and having lead-in portions adjacent one axial end of the bore, and an elongated mandrel axially movable into the bore, by placing at least one blank in position outside the die block and adjacent the axial end of the bore, causing the mandrel to extend through the center hole in the blank; forcing the blank into the bore from the axial end of the bore until the blank is moved past the teeth of the die block so that the blank is caused to form gear teeth on its outer peripheral surface by the teeth of the die block; driving at least one of the die block and the mandrel to move with respect to each other so that the gear resulting from the blank is withdrawn together with the mandrel out of the bore in the die block; and removing the gear from the mandrel outside the die block.

摘要翻译： 在齿轮形成设备中形成齿轮，该齿轮形成设备包括形成有轴向孔和径向突出到孔中的多个齿的模具块，并且具有邻近孔的一个轴向端部的引入部分，以及可轴向移动成 孔，通过将至少一个坯料放置在模具块外部并且邻近孔的轴向端部，使得心轴延伸穿过坯料中的中心孔; 迫使坯料从孔的轴向端到孔中，直到坯料移动经过模具块的齿，使得坯料通过模具块的齿在其外周表面上形成齿轮齿; 驱动模块和心轴中的至少一个相对于彼此移动，使得由坯料产生的齿轮与心轴一起从模具块中的孔中排出; 并从模具外部的心轴上移除齿轮。

公开(公告)号：US4509353A

公开(公告)日：1985-04-09

申请号：US467603

申请日：1983-02-18

申请人： Masahide Ike ,  Masashi Arita

发明人： Masahide Ike ,  Masashi Arita

IPC分类号： B21K1/30 ,  B21C23/18

CPC分类号： B21K1/30 ,  Y10T29/49474

摘要： Gears are formed from annular blanks in a gear-forming apparatus including a die block formed with an axial bore and teeth radially projecting into the bore, a cylindrical punch sleeve axially movable toward and away from the bore in the die block, a mandrel movable with the punch sleeve into and out of the bore in the die block, and a backup sleeve axially movable into and out of the bore in the die block in opposite directions to the directions of movement of the sleeve punch and mandrel, wherein gears are formed by preliminarily forcing at least one of the blanks into the bore in the die block until the blank is partially deformed by the teeth of the die block; placing another blank on the preceding blank so that the subsequent blank is received on the preceding blank; causing the mandrel to extend through the respective center holes in the preceding and subsequent blanks; pressing the preceding and subsequent blanks between the end faces of the punch and backup sleeve and forcing the two blanks through the bore in the die block so that the preceding blank is caused to form gear teeth on its outer peripheral surface; and forcing the subsequent blank and the gear resulting from the preceding blank through the bore in the die block for withdrawing the gear out of the bore in the die block.

摘要翻译： 齿轮由齿轮形成装置中的环形毛坯形成，包括形成有轴向孔和径向突出到孔中的齿的模具块，可以朝向和远离模具块中的孔轴向移动的圆柱形冲压套筒， 穿孔套管进入和离开模具块中的孔，以及备用套筒，其可沿与套筒冲头和心轴的运动方向相反的方向轴向移动和移出模具块中的孔，其中齿轮由 预先将至少一个坯料强制进入模块中的孔中，直到坯料被模具块的齿部分变形为止; 在前一个空白处放置另一个空白，以便后一个空白在前一个空白处收到; 导致心轴延伸通过前一个和随后的坯料中的相应的中心孔; 在冲头和支撑套筒的端面之间挤压前一个和随后的坯件，并迫使两个坯件穿过模具块中的孔，使得前一坯件在其外周表面上形成齿轮齿; 并迫使随后的坯件和由前一坯件产生的齿轮穿过模具块中的孔，以将齿轮从模具块中的孔中取出。

公开(公告)号：US4337817A

公开(公告)日：1982-07-06

申请号：US125857

申请日：1980-02-29

申请人： Mikiya Komatsu ,  Masashi Arita ,  Syunsuke Suzuki

发明人： Mikiya Komatsu ,  Masashi Arita ,  Syunsuke Suzuki

IPC分类号： B22D17/00 ,  B22D17/12 ,  B22D19/00 ,  B22D17/08 ,  B22D17/20 ,  B22D19/04

CPC分类号： B22D19/00 ,  B22D17/12

摘要： A method for joining a member to a diecast article using an apparatus comprising dies, an injection sleeve communicating with a cavity of the dies and a plunger tip slidably arranged in the injection sleeve for filling the cavity of the dies with the molten metal previously poured in the injection sleeve. According to the invention, the plunger tip is formed with an insert aperture for receiving the member to be joined such that a portion of the member extending beyond an upper surface of the plunger tip is exposed in the molten metal when it is poured in the injection sleeve, thereby sufficiently transmitting the heat of the molten metal to the portion of the member to obtain a metallurgical bond at a boundary between the member and the diecast article.

摘要翻译： 一种用于使用包括模具的装置将构件接合到压铸物品的方法，与模具的腔体连通的注射套筒和可滑动地布置在注射套筒中的柱塞尖端，用于将先前浇注的熔融金属填充模具的腔体 注射套管。 根据本发明，柱塞尖端形成有插入孔，用于接收待接合的构件，使得当其被注入到注射器中时，延伸超过柱塞尖端的上表面的部分暴露在熔融金属中 从而将熔融金属的热量充分地传递到构件的该部分，以在构件和压铸件之间的边界处获得冶金结合。