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公开(公告)号:US4005635A
公开(公告)日:1977-02-01
申请号:US520741
申请日:1974-11-04
CPC分类号: B23Q3/08 , B23C3/00 , B23H1/04 , Y10T409/303808
摘要: A rough-cut blank is machined to provide a spark erosion electrode for use in the manufacture of an extrusion tool by bonding the blank to a base plate, fixing the base plate to a milling machine table and milling the blank. The milled blank is subsequently detached from the base plate by breaking the bond between the blank and the base plate.
摘要翻译: 加工粗切坯料以提供用于制造挤出工具的火花腐蚀电极,通过将坯料粘合到基板上,将基板固定在铣床上并铣削坯料。 随后,通过破坏坯料和基板之间的结合,研磨的坯料随后与基板分离。
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公开(公告)号:US07938641B2
公开(公告)日:2011-05-10
申请号:US10240476
申请日:2001-03-27
IPC分类号: B29C47/20
摘要: An extrusion die comprises a die body defining a die cavity (18). The cavity (18) is shaped such that the die body includes a male portion (24) and a female portion (26). A leading edge (18a) of a part of one side of the die cavity (18) is out of alignment with a leading edge (18a) of an opposing part of the die cavity (18), at rest, such that, in use, when deflection of parts of the die occurs, the leading edges (18a) substantially align.
摘要翻译: 挤出模具包括限定模腔(18)的模具主体。 空腔(18)成形为使得模具主体包括阳部分(24)和阴部分(26)。 模腔(18)的一侧的一部分的前缘(18a)与模腔(18)的相对部分的前缘(18a)不对齐,静止时使得在使用中 当模具的部件发生偏转时,前缘(18a)基本对齐。
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公开(公告)号:US6062059A
公开(公告)日:2000-05-16
申请号:US983118
申请日:1998-02-04
CPC分类号: B21C25/02
摘要: An extrusion die (11) comprises a die cavity (12) having a shape corresponding to the cross-sectional shape of the required extrusion, and a preform chamber (19) in communication with the die cavity (12), the preform chamber (19) being of generally similar shape to the die cavity (12) but of greater cross-sectional area, so that regions of the preform chamber (19) communicate with corresponding regions respectively of the die cavity (12). Each region of the preform chamber (19) has a bearing length (20) which is so determined in relation to its dimensions and position that, in use, extrusion material passing through each region of the preform chamber (19) is constrained to move at a velocity such that the material passes through all regions of the die cavity (12) at a substantially uniform velocity. The die cavity (12) itself is of uniform, preferably zero, bearing length so that the extrusion process is controlled solely by adjustment of the preform chamber (19), such adjustment then being readily quantifiable and repeatable.
摘要翻译: PCT No.PCT / GB96 / 01595 Sec。 371日期:1998年2月4日 102(e)1998年2月4日PCT PCT 1996年7月4日PCT公布。 第WO97 / 02910号公报 日期1997年1月30日挤压模具(11)包括具有与所需挤出件的横截面形状对应的形状的模腔(12)和与模腔(12)连通的预成型室(19) 预成型室(19)具有与模腔(12)大致相似的形状,但具有更大的横截面面积,使得预成型室(19)的区域与模腔(12)的相应区域连通。 预型腔室(19)的每个区域具有相对于其尺寸和位置如此确定的轴承长度(20),在使用中,穿过预成型室(19)的每个区域的挤压材料被限制在 使得材料以基本均匀的速度穿过模腔(12)的所有区域的速度。 模腔(12)本身具有均匀的,优选为零的轴承长度,使得挤出过程仅通过调节预成型室(19)来控制,因此这种调节容易可量化和重复。
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公开(公告)号:US4020743A
公开(公告)日:1977-05-03
申请号:US641938
申请日:1975-12-18
CPC分类号: B23Q35/102 , B23Q1/5406 , Y10T409/302632
摘要: A milling machine comprising a base, a milling head mounted on the base for movement relative thereto about a horizontal pivot axis, means for holding the milling head in a selected angular position about said axis and drive means for transmission of drive to a milling cutter held, in use, by holding means on the head, said holding means and pivot axis being so disposed relative to one another that said pivot axis intersects the axis of rotation of the milling cutter at the cutting location.
摘要翻译: 一种铣床,包括基座,铣头安装在基座上以围绕水平枢转轴线相对于其移动;用于将铣头保持在围绕所述轴线的选定角度位置的装置和驱动装置,用于将驱动传动到保持的铣刀 在使用中,通过在头部上的保持装置,所述保持装置和枢转轴线相对于彼此设置成使得所述枢转轴线在切割位置处与铣刀的旋转轴线相交。
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