20 January 2017

Advantages and disadvantages of chemical machining

Chemical machining is stock removal process for the production of desired shapes and dimensions through selective or overall removal of material by a controlled chemical attack with acids or alkalis. The metal is gradually transformed into metallic salt by chemical reaction and is ultimately removed in this form. Let us have a deep insight into the pros and cons of chemical machining in this article. 

Advantages of Chemical Machining :

  • Components are produced burr-free.
  • The process is relatively simple.
  • Can be applied to almost any material.
  • Thin sections.
  • Several components can be produced simultaneously.
  • The process does not distort the machined components.
  • Most difficult to machine material can be processed.
  • High surface finishing is possible.

Disadvantages of Chemical Machining :

  • The metal removal rate is slow.
  • Metal thicker than 2 mm can not be usually machined.
  • High operator skill is required.
  • Corrosive etchant damages the equipment.
  • Required the handling of dangerous chemicals.
  • Disposal of potentially harmful byproducts.