Tuesday, June 30, 2015

Advantages of lapping


Advantages of Lapping

gmt-lapping-machine

  •  Improves surface finish by eliminating the peaks and valleys. 
  • Create maximum bearing area between the mating surfaces. 
  •  Improves service life of the moving parts which are subject to wear. 
  • Improves geometrical and dimensional accuracies. 
  •  There is absolutely no distortion in the component after lapping since no clamping devices are used. 
  • Minimizes the necessity of re hardening hardened parts because of less heat generation. 
  • Accessible flat surfaces of parts of any shape and size and any type of material can be lapped.        
  • Simple carrier plate design is enough to accommodate the component for lapping (i.e.) complicated fixture is not required. 
  • Any unskilled operator can work on the machine.

Monday, June 22, 2015

Lapping Process



Lapping is the process of rubbing two surfaces together with a lapping medium (Lapping fluid and Lapping Grit) between them.

lapping-process


Lapping is a low pressure abrading process which is employed as a precision finishing operation tooling to achieve high dimensional accuracy, improve geometrical accuracy, fine surface finish and ensure close fit between mating parts.

Peaks and valleys before lapping

lapping-machine

Peaks and valleys after lapping
after-lapping

Tuesday, June 2, 2015

History of Lapping Machine

early-lapping-process
Lapping is the process of rubbing two surfaces together with a #lappingmedium (Lapping fluid and Lapping Grit) between them.

Stone age man (fig-1) used the process of lapping in preparing their tool and implements to the extent that they drilled holes in a work piece by rotating sticks on it sand strewn surface.

A sketch as shown above (fig-2) from the German Museum in Munich, which has illustrated a probable early “Lapping Machine

Friday, February 13, 2015

Finding it difficult to machine hard to hold, non-cylindrical components?

gmt special chucks
GMT Special Workholding :

GMT offers #workholding solutions to meet your machining requirement. GMT makes custom built chucking system for special applications. These specially designed Power Operated Chucks have gained the trust of GMT customers due to GMT’s high technical standards.With modern #manufacturing facilities, GMT is able to meet & deliver special workholding for special applications.#gmtchucks

Wednesday, January 28, 2015

GMT CAST IRON BENCH CENTRE - LIGHT DUTY CCC

LIGHT DUTY C C C WITH RECTANGLE HEAVY DUTY BASE

bench centre
The bench centre base is made of close grained Cast Iron, heavily ribbed and stress relieved. The checking centres consist of head stock and tail stock. Head stock spindle is made up of Nickel-Chromium Steel, case hardened and ground. Bench Centres are made up of tool steel and ground.
Light duty bench centre
Contact us for information
Guindy Machine Tools Limited
214, Old no.196,
Velachery Tambaram Main Road,
Pallikkaranai,
Chennai 600100
Tamil Nadu, India
Ph-+918754483577
E-Mail: esales@gmt.co.in