CNC Milling Machines

Posts Tagged ‘boring’

www.glacern.com http Glacern Machine Tools Crash Course in Milling Tutorials – Made for Machinists by Machinists Chapter 8: Choosing & Using Endmills – Our “Crash Course in Milling” training series for conventional and CNC milling machines covers many topics including basic machine anatomy, workholding, toolholding, and various milling operations. Watch the entire series on our website @ www.glacern.com or shop online for many of the products featured in the videos.

Boring machines represent a vital piece of equipment in most woodworking operations. Like many other woodworking machines, today’s boring equipment has benefited from the addition of computers to ensure accuracy and reduce set-up time for greater productivity. The two dominant types of machines in today’s boring equipment field are automatic multiple-spindle machines and CNC point-to-point machines. Although both types of machines perform accurate boring, each has characteristics that allow them to perform different types of jobs more efficiently than their counterpart. Boring machines cut the inside of a bore to enlarge its diameter. Boring machines are developed to make a bore in the shortest time and produce the highest possible surface finish and tolerances. There are many types of boring machines. Examples include a line boring machine, tunnel boring machine, horizontal boring machine, directional boring machine, cylinder boring machine, jig boring machine, portable boring machine, vertical boring machine and a coupling boring machine. Boring machines used in toolmaking shops have one vertical spindle and a work-holding table that can be moved horizontally in two directions perpendicular to each other so that holes can be accurately spaced. On some machines the spacing error is less than 0.002 percent. In mass-production plants, special boring machines with multiple spindles are common.

A line Boring machine bores holes in heavy construction equipment such as cranes and end loaders, and is very economical equipment. A tunnel boring machine is capable of drilling a bore in everything from hard rock to sand and produces a smooth tunnel wall. A horizontal boring machine is a time-saver machine used to bore holes in highly rigid construction. A directional boring machine includes a frame and a drive mechanism that is sliceable and is mounted on the frame. A cylinder boring machine is mainly used for reboring engine cylinders in automobiles. A jig boring machine is used to accurately enlarge existing holes and make their diameters highly accurate. They perform operations such as drilling, boring, and counter-sinking holes in metal work pieces. A portable boring machine is a flexible, powerful, and easy to use machine that is available with a pneumatic or hydraulic drive. A vertical boring machine is designed for manual vertical drilling and it has a drill chuck. A coupling boring machine is designed to bore precision couplings. Other boring machines are commonly available.

A tunnel boring machine (TBM) is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They can bore through hard rock, sand, and almost anything in between. Tunnel diameters can range from a metre (done with micro-TBMs) to almost 16 metres to date. Tunnels of less than a metre or so in diameter are typically done by horizontal directional drilling rather than TBMs.

Tunnel boring machines are used as an alternative to drilling and blasting (D&B) methods in rock and conventional ‘hand mining’ in soil. A TBM has the advantages of limiting the disturbance to the surrounding ground and producing a smooth tunnel wall. This significantly reduces the cost of lining the tunnel, and makes them suitable to use in heavily urbanized areas.

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GRAFFENSTADEN ME761, 2500MM X 2000MM, 6 AXIS CNC HORIZONTAL RAM TYPE FLOOR BORING & MILLING MACHINE. SIEMENS SINUMERIK 840C CONTROL-UPGRADE 2001 (Electro Motion Stock No. 27626)

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This is another precision work we didon aluminum 2024 We work with Programming, Machine Work, Tapping, Turning, Milling & Boring Service. Manufacturer of linear blocks, jump switches, shafts, slides, clevises, & bushings. Machining capabilities include product proto-type, production, machine modification, engineering, conventional lathe application, milling machining, welding, bracing, boring, broaching, slotting / key ways, reaming, knurling, general maintenance, & standard & emergency machine repair. Industries served include aerospace, military & automotive.

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Butler TE-2M CNC, X-78″, Y-46″, Z-41″, Universal Head, Manual Index, Heidenhain TNC151, RS232 Port, 1983 REF# 17515

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This is “KARAM” Multi-Functional – Horizontal Boring, Milling, Drilling & Facing Machine manufactured by GURU NANAK Engineering Works (Regd.) Batala.

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MACHINERY CONSULTANTS INC * WWW.TOOLMACHINE.COM * 1390 W 200 S * SALT LAKE CITY UT 84104 U.S.A. * (801) 531-9500 PHONE * MCI@TOOLMACHINE.COM

Pre-Owned GIDDINGS & LEWIS 300T 3 Horizontal Boring, Milling & Drilling Machine ~ Serial No. G1091

General Specifications, Approximate
Subject to verification
Diameter of spindle3
Spindle taper#40 G&L Quick Change (Fishtail)
Spindle travel24
Spindle speeds (32)22 to 1600 RPM
Spindle feeds (36).0012 to .125 IPR
Table, saddle & head feeds (18)¼ to 30 IPM
Working surface of table30 x 48
Max height of spindle to table34
Table cross travel42
Vertical travel36
Saddle travel38
Main motor10 hp 220/440V
Weight25,000#
Dimensions13L x 8W x 96H
Inventory #7-089

Complete With
-3 AXIS SONY DIGITAL READOUT
-BUILT IN OUTER SADDLE SUPPORTS (OUTRIGGERS)
-POWER RAPID TRAVERSE IN ALL DIRECTIONS
-PENDANT CONTROL
- HARDENED WAYS
-TONS OF TOOL HOLDERS

Condition: Absolutely wonderful condition, very limited use. From long term storage.

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