公开(公告)号：EP1671723A2

公开(公告)日：2006-06-21

申请号：EP05025535.5

申请日：2005-11-23

申请人： Borgwarner, Inc.

发明人： Hicklen, Edwin Scott ,  Kuplen, Sean ,  Xu, Kai ,  Sun, Ryan

IPC分类号： B22F3/03

CPC分类号： B22F3/03

摘要： A device to compact parts out of powder material including a top die and a bottom die movable with respect to each other from an open position to a closed position, at least one punch associated with each of said dies for relative movement between the die and associated punch, said bottom die and bottom punch movable to positions defining a cavity substantially within said top die for receiving powder therein, said bottom punch and said top and bottom dies being relatively movable to draw powder down into a portion of said cavity adjacent the bottom die that is formed due to said relative movement, said top and bottom punches being movable toward each other to compact the powder and form the part, said top and bottom dies being separable to eject the part. Relative movement of the top and bottom die and bottom punch may take place during filling of the cavity with powder. Alternatively, relative movement may take place after the completion of filling the cavity adjacent the top die with sufficient powder to fill the part.

摘要翻译： 一种用于从粉末材料压制零件的装置，包括可以从打开位置到关闭位置相对于彼此移动的顶模和底模，至少一个与所述模具中的每一个相关联的冲头，用于模具和相关联的模具之间的相对运动 所述底模和下冲头可移动到限定基本上在所述顶模内的空腔的位置，用于在其中接纳粉末，所述底冲头和所述顶模和下模具相对移动以将粉末向下拉入与所述下模具相邻的所述腔体的一部分 由于所述相对运动而形成，所述顶部和底部冲头可相对于彼此移动以压实粉末并形成所述部件，所述顶部和底部模具可分离以弹出所述部件。 顶部和底部模具和底部冲头的相对运动可以在用粉末填充空腔期间发生。 或者，相对运动可以在用足够的粉末填充部分附近的顶部模具填充完成之后发生。

公开(公告)号：EP1561832A1

公开(公告)日：2005-08-10

申请号：EP05001266.5

申请日：2005-01-21

申请人： BorgWarner Inc.

发明人： Sun, Ryan ,  Xu, Kai

IPC分类号： C22C33/02 ,  F16H55/06

CPC分类号： B22F3/16 ,  B22F3/24 ,  B22F5/08 ,  B22F2003/247 ,  B22F2003/248 ,  B22F2998/10 ,  B22F3/02 ,  B22F3/10

摘要： A method of producing parts from powdered metals is disclosed, comprising the following steps. A metallurgical powder is provided, consisting of iron, 0.3-1.0 weight percent carbon, 0-4 weight percent chromium, 0-3 weight percent copper, 0.5-1.5 weight percent molybdenum, 0.5-4.5 weight percent nickel, 0-1.0 weight percent manganese, and 0-1.5 weight percent silicon. Metal powders are made by atomization and mixing. The powder metal parts are made by compacting, pre-sintering, profile/form grinding, sinter furnace hardening, and secondary operations. Profile/form grinding generates profiles, which can not be formed by compaction tooling, such as undercut. The specific pre-sinter cycle makes parts strong enough for profile grinding with prolonged tool life. Powder metal parts made by this invention are also disclosed.

摘要翻译： 公开了一种从粉末状金属制备零件的方法，包括以下步骤。 提供了一种冶金粉末，其由铁，0.3-1.0重量％的碳，0-4重量％的铬，0-3重量百分比的铜，0.5-1.5重量％的钼，0.5-4.5重量％的镍，0-1.0重量％ 锰和0-1.5重量％的硅。 金属粉末通过雾化和混合制成。 粉末金属部件通过压实，预烧结，型材/形式研磨，烧结炉硬化和二次操作制成。 轮廓/成型研磨产生的轮廓不能通过压实工具形成，例如底切。 具体的预烧结循环使零件具有足够的外形磨削，延长了刀具寿命。 还公开了由本发明制成的粉末金属部件。

公开(公告)号：EP1550734A1

公开(公告)日：2005-07-06

申请号：EP04027718.8

申请日：2004-11-23

申请人： BorgWarner Inc.

发明人： Sun, Ryan ,  Xu, Kai ,  Matthews, Dan

IPC分类号： C22C33/02 ,  B22F3/00

CPC分类号： C22C33/0285 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B22F5/02 ,  B22F3/02 ,  B22F3/10 ,  B22F3/1007 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/20

摘要： A method of producing parts from powdered metal comprising the steps of providing a metallurgic powder comprising iron, 0-0.6 weight percent carbon, 0.5-5.0 weight percent silicon, 0.5-6.0 weight percent nickel, 0.5-1.5 weight percent molybdenum, 0-0.7 weight percent manganese, and 12-20 weight percent chromium, the weight percentages calculated based on the total weight of the powder. Secondly, the powders are compressed at a pressure of 35 to 65 tsi to provide a green compact. Then, the compact is heated in an atmosphere to a temperature of 2100°F to 2400°F for 20 to 90 minutes, such that the resulting microstructure of the compact is either single phase ferritic or dual phase ferritic and austenitic.

摘要翻译： 一种从粉末状金属制备部件的方法，包括以下步骤：提供包含铁，0-0.6重量％碳，0.5-5.0重量％硅，0.5-6.0重量％镍，0.5-1.5重量％钼，0-0.7 重量百分比的锰和12-20重量％的铬，基于粉末的总重量计算的重量百分比。 其次，将粉末在35至65tsi的压力下压缩以提供生坯。 然后，将该压块在气氛中加热到2100°F至2400°F的温度20至90分钟，使得压块的所得微结构为单相铁素体或双相铁素体和奥氏体。

公开(公告)号：EP1671723B1

公开(公告)日：2010-04-14

申请号：EP05025535.5

申请日：2005-11-23

申请人： BorgWarner, Inc.

发明人： Hicklen, Edwin Scott ,  Kuplen, Sean ,  Xu, Kai ,  Sun, Ryan

IPC分类号： B22F3/03

CPC分类号： B22F3/03

公开(公告)号：EP1671723A3

公开(公告)日：2007-06-13

申请号：EP05025535.5

申请日：2005-11-23

申请人： Borgwarner, Inc.

发明人： Hicklen, Edwin Scott ,  Kuplen, Sean ,  Xu, Kai ,  Sun, Ryan

IPC分类号： B22F3/03

CPC分类号： B22F3/03

摘要： A device to compact parts out of powder material including a top die and a bottom die movable with respect to each other from an open position to a closed position, at least one punch associated with each of said dies for relative movement between the die and associated punch, said bottom die and bottom punch movable to positions defining a cavity substantially within said top die for receiving powder therein, said bottom punch and said top and bottom dies being relatively movable to draw powder down into a portion of said cavity adjacent the bottom die that is formed due to said relative movement, said top and bottom punches being movable toward each other to compact the powder and form the part, said top and bottom dies being separable to eject the part. Relative movement of the top and bottom die and bottom punch may take place during filling of the cavity with powder. Alternatively, relative movement may take place after the completion of filling the cavity adjacent the top die with sufficient powder to fill the part.