1.Craft grinding and polishing
This method no need special equipment,the adaptability is strong,.First depends on the
experience and skill levels of the operator , low power (take up about a third of the
whole prototype model cycle), and the worker labor intensity is big, the quality is not stable,
restricted the prototype develop to a higher level . But according to the current social
and economic development situation, temporarily can't thoroughly screening this processing
technique.
2.Digital prototype polishing machine
This polishing things choose digital control, digital show and control skill parameters ,
equipped with a complete set of grinding head and abrasive, semi-automatic polishing, with
the advantages of small volume, easy to use, stable quality , good repeatability .
Use scale:
a.Material:all kinds of prototype material,including cast steel, forged steel, aluminum
alloy and zinc alloy.
b.Prototype appearance dimension:100×100(mm)－1,500×3,000(mm)
3.Ultrasonic prototype polishing machine
The polishing things choose high-frequency edm pulse power supply and the principle of
ultrasonic vibration grinding to make polishing. It can usually make polishing things (such
as electric grinding soft shaft) stretch into the narrow slot, narrow gap, the curved
areas, edges,etc.Will not affect the prototype precision after polishing.Choose
this for polishing, can rapid shaping and polishing of rough appearance, not be bound
by the shape, material hardness, and no requirements to the roughness ,the effectiveness
is high.
4.4.With the high speed milling skills as prototype semi-finishing and finish machining technique
Selection of high speed milling prototype type surface can save 25% ~ 60% working hours
than EDM machining; The high speed milling surface appearance with good quality, can
prevent the appearance fine lines of EDM machining . High speed milling can process
45 ~ 60 HRC hard appearance, The roughness of the fine milling surface can reach
Ra = 0.63 mm, save the processing EDM electrode production link, significantly shorten
the molding cycle.
5.Electrochemistry and electrochemical mechanical finishing machining
Electrochemistry and electrochemical mechanical finishing machining first depend on
electrochemical anodic dissolution principle of metal workpiece to process, to remove
ions. And because of touch processing , no processing deformation layer, metamorphosis
and residual stress; No wear, can be used for a long time; With no flash and burr. Selects
this method to process,can advance 5 times than normal processing.
