SGS-Tools - Инструмент для обработки композитных материалов - 2013 EN

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                                                             Series 120 8 Facet Drill

  SPEED	     FEED	    RADIAL WIDTH	     AXIAL DEPTH	         WORKPIECE	                     MACHINE TYPE		                 COOLANT
5,000 rpm	  5.0 ipm	         .190”	           .240”	         HARDNESS 		             Vertical Machining Center	               none
TOOL NO.	
                                                                  CFRP	

            TYPE DESCRIPTION	             TIR IN	  USAGE	                            INSPECTION NOTES
                                        MACHINE

                                                             Good hole quality for 1st 3 holes – fraying starting by 3rd hole, .0021” wear

                                                                    1st hole	        3rd hole	   50th hole	                After 50 holes

1           .190” CFRP drill, uncoated	 .0001”	    50 holes

                                                             Good hole quality all 50 holes – slight fraying, .0013” wear

                                                                    1st hole	        25th hole	  50th hole	                After 50 holes

2		         .190” CFRP drill, diamond	  .0002”	    50 holes

PERFORMANCE VALIDATION

A test was conducted of our CFRP drill to determine the necessity of coating
when drilling Carbon Fiber material. Fifty holes were drilled using a special size
.190” CFRP drill. The tool’s design produces acceptable quality holes; but as
shown in the photos, early edge wear on the uncoated drill resulted in holes
with frayed edges. The diamond coated drill produced all 50 holes with little to no
fraying and edge wear was 38% less than the uncoated drills.

The geometry of the 8 Facet drill with the Di-NAMITE coating is a necessity for
additional tool life and productivity when manufacturing Carbon Fiber material.

                                                   sgs@sgs-tool.ru                                                                          5
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