Drilling - Process and Machine - Evolution
2011 - 2020 Drilling Operation Elements - News and Information for Industrial Engineering
2000-2010 Drilling Operation Elements - News and Information for Industrial Engineering
1991-2000 Drilling Operation Elements - News and Information for Industrial Engineering
Automotive components requiring deep hole drilling:
Rackbars, Pinion Shafts, Cylinder Head, Engine Blocks, Valve Guides, Transmission Shafts, Connecting Rod, Input Shaft, Output Shaft, Gear Shaft, Camshaft, Crankshaft, Rocker Arm Shaft, Crank Case, Shock Absorbers, Piston Pin, Pump Barrel, Common Rail, and Nozzle.
Automotive deep hole applications - Available Solutions
Cam Shaft Deep Hole Drilling Solution
Engine Connection Rod Deep Hole Drilling Solution
Engine Valve Deep Hole Drilling Solution
Engine Valve Guide Drilling Solutions - Valve Guide Gundrilling
Fuel Injection Parts Deep Hole Drilling Machine
Gear Shaft Deep Hole Drilling Solutions
Oil pump injectors gun drilling machine
https://www.deepholemachines.com/special-purpose-deephole-machines/automotive-deep-hole-applications
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https://www.youtube.com/watch?v=sN3F6W3J5Uc
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Deep hole drilling - Fundamentals
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https://www.youtube.com/watch?v=1FmNqL_0dOE
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2021
https://www.americanmachinist.com/machining-cutting/media-gallery/21153554/customized-deephole-drilling-suhner-industrial-products
Search deep hole drilling - Interesting results
Widia TDMX indexable insert drilling line has been extended.
Deep hole drilling line extended
05.01.2021
1.5XD and 12XD drill bodies got added to the existing 3XD, 5XD and 8XD.
The new 1.5XD addition will enhance the productivity, rigidity and stability when drilling shallow holes whereas the 12XD range will enable manufacturers to enjoy the benefit deep hole drilling. The TDMX drill body incorporates polished flutes, through coolant channels and margin lands on the entire body length to ensure straightness and increased hole quality.
2020
Going deep and cellular
Published December 8, 2020
Deep-hole drilling systems, which can produce holes that exceed a 20-1 depth-to-diameter ratio, are a unique class of manufacturing equipment.
Unisig a multiple-spindle machine, the UNI25HD. It had the power and controls necessary to apply indexable gundrilling tools, significantly improving feed rates.
https://www.ctemag.com/news/articles/going-deep-and-cellular
BTA deep hole drilling machine
Drilling system and methods for deep hole drilling
Abstract
A deep hole drilling system and methods provide stability and cutting performance to produce deep holes having desired straightness. The system may include a replaceable cutting head provided with a center cutting member and first and second side cutting inserts. The tool provides a major diameter with the OD cutting margins on the replaceable side inserts, as well as possibly cutting margins on the center cutting member. Adjustment mechanisms are provided to adjust the center cutting member and/side cutting inserts.
2020-02-25: Publication of US10569347B2
Inventor: L Paul, W. Best, Salvatore D. Deluca, Lucas S. Dummermuth, David J. Carlisle, Current AssigneeL Allied Machine and Engineering Corp
https://patents.google.com/patent/US10569347B2/en
2018
Selection Of Deep Hole Drilling Parameters Under Cycle Time Requirement Based On Tool Wear Analysis And Life Estimation
Cong Liao, Haiyan Henry Zhang, and Yueen Li
Journal of Multidisciplinary Engineering Science and Technology (JMEST)
Vol. 5 Issue 10, October - 2018
Deep hole drilling process investigated
9.9 mm diameter and 202 mm depth (the L/D ratio is more than 20). The tool is solid carbide twist drill bit coated with TiCrN and the workpiece is SAE1045.
Cutting parameters and conditions:
SFM – 262(2570rpm), feed – 0.23mm/rev,
coolant pressure – 725 psi, coolant concentration – 6~8%.
Observed that the severe tool wear occurred at the periphery of the cutting edge in the early stage of usage under the cutting condition of depth of 202 mm, diameter of 9.9mm, speed of 2570 rpm, and feed of 0.23 mm/rev. The surface speed at the outer spot of the cutting edge is estimated of 79.9 m/min.
Experiments reported
V (m/min) f (mm/rev) tcycle (min)
79.9 0.23 0.3149
65.3 0.27 0.3563
65.3 0.225 0.4276
The paper gives the formula for calculating drilling time.
It also gives tool life formula for deep hole drilling in terms of cutting speed, feed and hole length.
2017
https://www.fabricatingandmetalworking.com/2017/12/deep-hole-drilling-of-diesel-engine-components-transmission-shafts-and-more/
2015
https://www.americanmachinist.com/machining-cutting/article/21898952/seven-axes-one-setup-for-deephole-drilling
https://www.americanmachinist.com/machining-cutting/media-gallery/21898953/automated-deephole-drilling-for-custom-shaft-production
2014
Going deep with holemaking
Christopher Tate
Published October 1, 2014
Uniform nomenclature for long/deep drills. Drill length is specified as a function of the diameter, it is common to see the drill length called out as 15D, 20D and so on. For example, 20D means the drill can produce a hole 20 diameters deep. Therefore, a ½ "-dia., 20D drill can produce a 10 "-deep hole.
2013
Effective Parameters For Improving Deep Hole Drilling Process By Conventional Method - A Review
L. Francis Xavier and D. Elangovan
2008
Water-Cooled VW Performance Handbook: 3rd edition
Greg Raven, Chad Erickson
Motorbooks, 15-May-2011 - Transportation - 208 pages
Turn your VW into a high-performance machine. Chad Erickson explains everything from low-buck bolt-ons to CNC-machined mods. Learn how to choose, install, tune, and maintain performance equipment for Golfs, GTIs, Jettas, Passats, and more. This book will help improve your VW’s engine, transmission and clutch, ignition, carburetion/fuel injection, suspension and handling, brakes, body, and chassis. In its 3rd edition, Water-Cooled VW Performance Handbook is now updated to include new engines, body styles, and modifications for the 1986–2008 model years.
1999
Process for drilling oil-holes in crankshafts
Abstract
A process for drilling oil holes in a crankshaft at various positions lengthwise and widthwise about a longitudinal axis of the crankshaft, where the oil holes are perpendicular to and have angled directions with regards to the longitudinal axis. The process includes the sequential steps of placing the crankshaft in a horizontal position in a crankshaft holding unit and maintaining the crankshaft in a horizontal position through the drilling process. The holding unit is then rotated on a vertical axis until the crankshaft faces the drilling unit. The crankshaft is next rotated along the longitudinal axis of the crankshaft to position the crankshaft in a position for drilling a hole. The drill tool is then moved on a second and third axis until the drill tool is situated in order to drill the hole in the crankshaft.
Application US09/756,669 events
1999-04-19
Priority to ES9900797
2002-11-26
Publication of US6485401B2
2019-07-23
Anticipated expiration
Status
Expired - Fee Related
https://patents.google.com/patent/US6485401B2/en
Updated 19 Feb 2021
Published on 15 Feb 2021
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