Saturday, October 18, 2008

lab cnc lathe...

huhuh..what a tired n boooooring day.. eventhough i used to like my lab on saturday,but today's lab is quite 'passive' n the longest i had instead of metrology.uwaa.. the technician is soo very the skema gitu.adoyy~

hmm,after all,our resulting workpieces (all 3) were great!we managed 2 complete all the task given successfully.we did turning,threading,drilling,grooving n lastly the finishing cycle to make the surface finish become smooth. but i din take any picture bcos my fon bat was empty *kuciwa*

anyway,this is the 2nd last lab for dis wk-->conventional milling.. looking fwd 2 it..'s some info bout cnc lathe.

CNC lathe

CNC lathes are rapidly replacing the older production lathes (multispindle, etc) due to their ease of setting and operation. They are designed to use modern carbide tooling and fully utilize modern processes. The part may be designed by the Computer-aided manufacturing (CAM) process, the resulting file uploaded to the machine, and once set and trialled the machine will continue to turn out parts under the occasional supervision of an operator. The machine is controlled electronically via a computer menu style interface, the program may be modified and displayed at the machine, along with a simulated view of the process. The setter/operator needs a high level of skill to perform the process, however the knowledge base is broader compared to the older production machines where intimate knowledge of each machine was considered essential. These machines are often set and operated by the same person, where the operator will supervise a small number of machines (cell).

The design of a CNC lathe has evolved yet again however the basic principles and parts are still recognizable, the turret holds the tools and indexes them as needed. The machines are often totally enclosed, due in large part to Occupational health and safety (OH&S) issues.

The basic G code used in this lathe programming are G 00 for rapid traverse, G 01 for linear interpolation cutting, G 02 for circular cutting in clockwise direction and G 03 for circular cutting in counter clockwise direction.

No comments: