MOCTEZUMA INTHERNACIONAL DE HERRAMIENTAS S.A. DE C.V.

TELS./FAX: 01 ( 55) 55 56 99 91, 53 55 76 71, 52 34 61 20 Y 52 34 61 21

Nuestra Empresa	Contenido e Índice	Nuestros Productos	Adaptadores y Boquillas	Soporte Técnico	Catálogo de Valenite
Our Company	Content and Index	Our Products	Adapters and Collets	Technical Support	Catálogo de Valenite

DISTRIBUIDOR MASTER EXCLUSIVO VALENITE^®

Regrindable Drills - Brocas Punta de Carburo

ESTA ES SOLO UNA MUESTRA REPRESENTATIVA DE NUESTRA AMPLIA GAMA DE PRODUCTOS

HIGH-PRODUCTION, COOLANT-FED, CARBIDE-TIPPED REGRINDABLE DRILLS

High-strength body made from heat-thread high nickel alloy steel.
New design features promote excelent chip control.
Tough brazes-on carbide tip ensures high penetration rates and long tool life.
Drilling depths up to 4 x diameter.

Coolant holes allow coolant to be supplied directly to cutting edges.
Capatable of drilling full range of common industrialmaterials from cast iron to inconel.
Ealsily regrindable - no special fixture or apparatus necessary.
26 cutting diameters from 31/64" to 1".

APPLICATION GUIDELINES

RECOMMENDED CUTTING SPEEDS AND FEEDS
PART MATERIAL	CUTTING SPEED (SFM)	FEED PER REVOLUTION
PART MATERIAL	CUTTING SPEED (SFM)	DRILL DIA 31/64 - 45 64	DRILL DIA 23/32 - 1"
Soft Steel	230 - 238	.007 - .012	.007 - .015
Carbon Alloy Steel	160 - 265	.006 - .010	.007 - .012
Stainless	100 - 200	.006 - .010	.007 - .012
Cast Iron	200 - 300	.007 - .015	.007 - .020
Aluminum	700 - 1000	.007 - .015	.007 - .020

HIGH-PRODUCTION, COOLANT-FEED, CARBIDE-TIPPED, REGRINDABLE DRILLS

APPLICATION GUIDELINES

Coolant Use-For Drills

Coolant should be supplied trough center hole of the dril.
Exxisting coolan can be used; but enriched mixture, diluted only 5 - 10 times, is recommended.
If coolant oil is used, it should be a gundrilling type containing active sulfur and cholorine.
Coolant volume should be 1.3 to 2.6 gallons / minute.
Recommended minimum coolant presure should be 70 PSI to 140 PSI, depending on application
A presoure stylecoolant inducer, is strongly recommended. With this type of inducer, good chip control can be maintaned even when drilling hard-to-machine materials by simply modifying the cutting speed and feed rate

REGRINDING

Toolsetting

The cutting enge and centerline of tool should be kept parallenl with grinding-macchine table. set 20 degrees against spindle center, and set spindle centerline at 7 degrees against spindle center, and set spindle centerline at 7 degrees.

Relief grinding

Fix dril on tool grinding machine as shown in diagram below. Then move table transversely and grind.
Relief anngle should be pre-set in fixture before grinding.
During final stage of grinding, be sure to spark-out and maintain the lip height betwen the two cutting edges to nithin .001 inch.

Honing

Hone entire edge evently, as shown in diagram below.
Amount and angle of honing should be according to table below.
Rough-hone first with a # 200 hand lapper. Finish with a # 400 lapper

SHARPENING OF CARBIDE

HONING OF CARBIDE

MATERIAL	"H" --- LAND WIDTH
MATERIAL	31/64 - 45/64	23/32 - 1" DIAMETER
Soft Steel	.006 - .008	.008 - .012
Carbon Alloy Steel	.004 - .006 *	.006 - .010*
Stainless	.004 - .006	.006 - .008
Cast Iron	.001 -.002	.002 - .004
Aluminum	.004 - .006 *	.006 - .010*

* Are stocked land widths

HIGH-PRODUCTION, COOLANT-FEED, CARBIDE-TIPPED, REGRINDABLE DRILLS

DRILL DIA D	PART NUMBER	√	SHANK DIA D1	L	L1	L2	L3	L4	L5	NPT
.404	VSD-404-062-219		.625	4.46	2.19	2.39	2.57	2.71	1.75	1/8 - 27
7/16	VSD-437-062-194			4.26	1.94	2.16	2.37	2.51
31/64	VSD-484-062-094			4.17	1.94	2.08	2.32	2.42
1/2	VSD-500-062-200			4.25	2.00	2.15	2.40	2.50
33/64	VSD-516-062-206			4.32	2.06	2.22	2.47	2.57
17/32	VSD-531-062-212			4.40	2.12	2.28	2.55	2.65
35/64	VSD-547-062-218			4.48	2.18	2.35	2.62	2.73
9/16	VSD-562-062-225			4.56	2.25	2.41	2.70	2.81
37/64	VSD-578-062-231			4.64	2.31	2.48	2.77	2.89
19/32	VSD-594-075-238		.750	4.96	2.38	2.55	2.85	2.96	2.00
3964	VSD-609-075-244			5.04	2.44	2.62	2.92	3.04
5/8	VSD-625-075-250			5.12	2.50	2.68	3.00	3.12
41/64	VSD-641-075-256			5.20	2.56	2.75	3.07	3.20
21/32	VSD-656-075-262			5.28	2.62	2.82	3.15	3.28
43/64	VSD-672-075-268			5.35	2.68	2.88	3.22	3.35
11/16	VSD-687-075-275			5.43	2.75	2.95	3.30	3.43
45/64	VSD-703-100-281		1.000	5.64	2.81	3.02	3.37	3.51	2.12
23/32	VSD-719-100-288			5.71	2.88	3.09	3.45	3.59
47/64	VSD-734-100-294			5.79	2.94	3.15	3.52	3.67
3/4	VSD--750-100-300			5.87	3.00	3.22	3.60	3.75
4964	VSD-765-100-312			6.17	3.12	3.50	3.98	4.12	2.13
25/32	VSD-781-100-312			6.02	3.12	3.36	3.75	3.90	2.12
13/16	VSD-812-100-325			6.18	3.25	3.49	3.90	4.06
27/32	VSD-844-100-338			6.33	3.38	3.62	4.05	4.22
7/8	VSD-875-100-350			6.50	3.50	3.76	4.20	4.38
29/32	VSD-906-100-362			6.65	3.62	3.89	4.35	4.53
59/64	VSD-921-100-375			7.07	3.75	4.21	4.82	4.96	2.13
15/16	VSD-937-125-375		1.250	7.06	3.75	4.03	4.50	4.68	2.38	1/4 -18
32/32	VSD-969-125-388			7.22	3.88	4.16	4.65	4.84
1"	VSD-1000-125-400			7.38	4.00	4.30	4.80	5.00
1 1/32	VSD-1031-125-400			7.41	4.00	4.31	4.83	5.03	2.37
1 3/64	VSD-1046-125-400			7.42	4.00	4.31	4.85	5.05
1 5/32	VSD-1156-125-400			8.11	4.00	4.58	5.54	5.74

anterior siguiente