公开(公告)号：US20150239045A1

公开(公告)日：2015-08-27

申请号：US14698230

申请日：2015-04-28

Applicant: Metec Powder Metal AB

Inventor： Christer ASLUND

IPC: B22F3/15 ,  B22F3/24 ,  B22F5/00 ,  C22C1/04 ,  C22C33/02 ,  C22C19/03 ,  C22C19/07 ,  B22F3/04 ,  C22C38/18

CPC classification number: B22F3/15 ,  B22F3/04 ,  B22F3/087 ,  B22F3/16 ,  B22F3/24 ,  B22F5/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0433 ,  C22C19/03 ,  C22C19/07 ,  C22C33/02 ,  C22C38/18 ,  Y10T428/12042 ,  B22F3/1021 ,  B22F3/1007 ,  B22F2201/013

Abstract: There is provided a method for the manufacture of a multilevel metal part, the method comprising the steps of: a) compacting agglomerated spherical metal powder to a green multilevel preform such that an open porosity exists, wherein the green multilevel preform fulfils the relation zg=zHVC·a, b) debinding the green preform, c) sintering the green preform in an atmosphere comprising hydrogen d) compacting the green preform with high velocity compaction to a density of at least 95% TD, e) subjecting the part to densification to a density of at least 99 % TD. There is further provided a multilevel metal part. Advantages of the method include that it is possible to manufacture a multilevel part which is essentially uniform throughout the entire part and which has excellent tolerance, which at the same time has virtually full density and thereby having excellent mechanical properties as well as excellent corrosion properties.

Abstract translation: 提供了一种用于制造多层金属部件的方法，该方法包括以下步骤：a）将聚集的球形金属粉末压实成绿色多层预制件，使得存在开放孔隙率，其中绿色多层预型件满足关系zg = zHVC·a，b）剥离生坯预成型件，c）在包含氢的气氛中烧结生坯预成型体d）以高速压实将生坯预成型体压实至至少95％TD的密度，e）使部件致密化 至少99％TD的密度。 还提供了多层金属部件。 该方法的优点在于，可以制造在整个部件上基本均匀的多层部件，其具有优异的公差，同时实际上具有全密度，从而具有优异的机械性能以及优异的腐蚀性能。