Directives en matière de perçage trou profond
Step 1: Pilot Hole
- 100 % RPM
- 100% IPR (mm/rev)
Details:
- Establish the pilot hole using the same diameter short drill to a depth of 2xD minimum.
- Utilize a pilot drill with the same or larger included point angle.
Step 2: Feed-in
- 50 RPM max
- 12 IPM (300 mm/min)
Details:
- Feed the longer drill within 1/16" (1.5mm) short of the established pilot hole bottom at a maximum of 50 RPM and 12 IPM (300 mm/min) feed rate.
Step 3: Deep Hole Transition Drilling
- 50 % RPM
- 75% IPR (mm/rev)
Details:
- Drill additional 1xD past the bottom of the pilot hole at 50% reduction of recommended speed and 25% reduction of recommended feed.
- Minimum of one second dwell is required to meet full speed before feeding.
Step 4: Deep Hole Drilling - Blind
- 100% RPM
- 100% IPR (mm/rev)
Details:
- Drill to full depth at recommended speed and feed for longer drill according to Allied speed and feed charts.
- No peck cycle recommended.
Step 5: Deep Hole Drilling - at Breakout
Details:
For through holes only:
- Reduce speed by 50% and feed by 25% prior to breakout.
- Do not break out more than 1/8" (3mm) past the full diameter of the drill.
Details:
- Reduce speed to a maximum of 50 RPM before retracting from the hole.
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Tool failure can cause serious injury. To prevent:
- When using Superion drills greater than 9xD without support bushing, use a short Superion drill to establish an initial hole that is a minimum of 2 diameters deep.
- Do not rotate drills more than 50 RPM unless it is engaged with the workpiece or fixture.
Visit
www.alliedmachine.com/DeepHoleGuidelines for the most up-to-date information and procedures.
Factory technical assistance is available for your specific applications through our Application Engineering department.
North and South America and Asia: 1-330-343-4285 ext: 7611 | email:
appeng@alliedmachine.com
Germany: +49 (0)7022 408-0 | email:
info@wohlhaupter.de
United Kingdom: +44 (0) 1384 400 900 Ext. 4 |
engineering.eu@alliedmachine.com
Les défaillances d'outil peuvent causer des blessures graves. Pour les empêcher :
- Lorsque vous vous servez d'un porte-outil sans douille de guidage, utilisez un porte-outil T-A® court pour réaliser un premier trou d'une profondeur égale à au moins deux fois le diamètre.
- Ne faites pas tourner les porte-outils à plus de 50 tr/min s'ils ne sont pas engagés avec la pièce ou l'équipement.
Rendez-vous sur
www.alliedmachine.com/Support/Safety/Deep-Hole-Drilling-Guidlines/T-A®-and-GEN2-T-A®.aspx pour consulter les dernières informations et procédures publiées. Une assistance technique sur site est disponible pour vos applications via notre équipe d'ingénieurs d'application.