| dc.creator |
Durazo-Cardenas, Isidro |
|
| dc.creator |
Shore, Paul |
|
| dc.creator |
Luo, X. |
|
| dc.creator |
Jacklin, T. |
|
| dc.creator |
Impey, Susan A. |
|
| dc.creator |
Cox, A. |
|
| dc.date |
2011-06-21T23:09:06Z |
|
| dc.date |
2011-06-21T23:09:06Z |
|
| dc.date |
2006-07-24T00:00:00Z |
|
| dc.identifier |
I. Durazo-Cardenas, P. Shore, X. Luo, T. Jacklin, S.A. Impey, A. Cox, 3D characterisation of tool wear whilst diamond turning silicon, Wear, Volume 262, Issues 3-4, 4 February 2007, Pages 340-349 |
|
| dc.identifier |
0043-1648 |
|
| dc.identifier |
http://dspace.lib.cranfield.ac.uk/handle/1826/3823 |
|
| dc.description |
Nanometrically smooth infrared silicon optics can be manufactured by the diamond
turning process. Due to its relatively low density, silicon is an ideal optical
material for weight sensitive infrared (IR) applications. However, rapid diamond
tool edge degradation and the effect on the achieved surface have prevented
significant exploitation. With the aim of developing a process model to optimise
the diamond turning of silicon optics, a series of experimental trials were
devised using two ultra-precision diamond turning machines. Single crystal
silicon specimens (1 1 1) were repeatedly machined using diamond tools of the
same specification until the onset of surface brittle fracture. Two cutting
fluids were tested. The cutting forces were monitored and the wear morphology of
the tool edge was studied by scanning electron microscopy (SEM). The most
significant result showed the performance of one particular tool was
consistently superior when compared with other diamond tools of the same
specification. This remarkable tool performance resulted in doubling the cutting
distance exhibited by the other diamond tools. Another significant result was
associated with coolant type. In all cases, tool life was prolonged by as much
as 300% by using a specific fluid type. Further testing led to the development
of a novel method for assessing the progression of diamond tool wear. In this
technique, the diamond tools gradual recession profile is measured by performing
a series of plunging cuts. Tool shape changes used in conjunction with flank
wear SEM measurements enable the calculation of the volumetric tool wear rate. |
|
| dc.language |
en_UK |
|
| dc.publisher |
Elsevier Science B.V., Amsterdam. |
|
| dc.subject |
IR optics |
|
| dc.subject |
Diamond turning |
|
| dc.subject |
Diamond tool wear |
|
| dc.subject |
Tool life |
|
| dc.subject |
Silicon optics |
|
| dc.title |
3D characterisation of tool wear whilst diamond turning silicon |
|
| dc.type |
Article |
|