TDXL - HSS Extra Long Drill (No pecking!) - OSG - #8

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■ Coolant Application Key Points
Vertical Machine
Horizontal Machine
o
o
X
Hole entrance at deepest area
Deepest area
Hole entrance at hole
depth midway point
Hole depth midway point
Hole entrance Hole area depth midway point
Deepest area
Hole entrance
Deepest area
Hole depth midway point
area
Drill entrance area
Drill entrance area
If there are too few coolant nozzles Is small, Increase the amount of coolant and Its discharge pressure and allow the coolant to move along the drill so that It Is applied constantly to the
entrance.
If there are too few coolant nozzles Is small, the coolant that Is applied to the hole entrance will stray from the hole
along the way.
Allow the coolant to move along the drill If the discharge flow rate is low or the number of nozzles Is too few.
■ For drilling holes with higher straightness requirements
© Make a pilot hole. © TDXL
Insert the TDXL while it is rotating (it is unnecessary to decrease the speed)
• For a pilot hole, select same size or below 0.05mm larger size drill than TDXL. For deep holes, we recommend using the same diameter. Use the same diameter for holes with higher straightness requirements.
• The recommended drills for a pilot hole are listed below.
© Start supplying the coolant (when drilling 30xD with small-diameter drills, the pressure of the coolant can cause the drill to vibrate)
■X Although there is no particular point angle requirement, the use of high-precision drills such as OSG's EX-GDS, VPH-GDS or other carbide drills is recommended.
© At the start of drilling, set the feed rate to 1% of the drill
diameter and increase the feed rate when the depth reaches between 3xD and 5xD.
★When using an OSG leading drill (NC-LDS, VP-LDS, etc) for centering, set the feed rate for the TDXL to 1% of the drill diameter from the entrance of the hole to 3xD. After that, increase the feed to the range indicated in the "Recommended Conditions".
1-2%D
Increase feed rate to between 1 and 2%
3-5D 1%D Set it to 1%D between 3xD and 5xD
OSG EUROPE s.a.
Av. Lavoisier 1 B-1300 Wavre Nord Belgium
Tel. + 32.10.230508 Fax + 32.10.230531
E-mail: info@osgeurope.com www.osgeurope.com
OSG CORPORATION /
Tool specifications subject to change without notice
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Complete Solution
All rights reserved. ©OSG Europe 2008 EURTDXL02RO8a
The contents of this catalogue are provided to you for viewing only. They are not intended for reproduction either in part or in whole in this or other medium. They cannot be copied, used to create derivation work or used for any reason, by means without the express, written permission of the copyright owner. If prices are stated, they are netto unit-prices and any eventual tax(es) have to be added. The company is not responsable for any printing error in technical, price and/or any other data.

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