英语翻译Stainless Steel,Titanium,Nickel,Nickel Alloys and certai

英语翻译
Stainless Steel,Titanium,Nickel,Nickel Alloys and certain Bronze parts are most
frequently processed by this method.Advantages include high production rates,
good permeability control and excellent dimensional reproducibility.
Part size and shape restrictions are those typical of P/M manufacturing process
as described in the MPIF Design Solutions Brochure.
2.Gravity Sintering;
Gravity or “loose powder” sintering is used to make porous metal parts from
powders that diffusion-bond easily (most production parts are made from
bronze).In this process,no outside pressure is applied to shape the part.The
appropriate material,graded for size,is poured into a mold cavity,which is a void
in the shape of the finished part.These metal particles are then heated to their
sintering temperature at which point a metallurgical bonding takes place,and
joining “necks” are formed at contact points.
Metallurgical Bonding
In consideration of the above process,the design engineer must,when
considering gravity sintering of a part,visualize the final shape completely
enclosed or surrounded by a mold,with the single exception of a “top” access
hole through which the cavity can be filled with powder.The formed shape that
can be easily extracted from that mold after it is sintered must also be visualized.