One of the most effective ways to deliver coolant to the cut is through the tool that is making the cut. Through-the-tool coolant delivery technology is available for drilling and milling with solid tools, and for cutting tools that use inserts. Those tools must be matched with toolholders that will allow the technology to be effective, and working fixtures that will keep the part in place while allowing the coolant and chips to be evacuated.
Coolant-through parting/grooving system
Iscar Metals Inc. (www.iscarmetals.com) has introduced a line of inserts that provide through-the-insert coolant capabilities. The company's Jet-Cut system is available as an upgrade to its Do-Grip parting inserts. The system has a coolant hole that passes through the insert to an outlet near the cutting edge. DGNC inserts are for parting and grooving operations on stainless steel and high temperature alloys. The company says applying coolant through the Jet-Cut system reduces flank and cratering rates and reduces production of long and tangled chips when cutting titanium and austenitic stainless steels.
Techniks CoolFLEX Tool Holders
Techniks Inc. (www.techniksusa.com) developed a new line of toolholders that provide machinists the ability to switch coolant paths from coolant-thru-spindle to DIN style coolant by removing two setscrews. The company says the switching feature on its CoolFlex toolholders can save thousands of dollars compared to the cost of tooling both coolant-thru and DIN coolant spindles.
Collets for Through-Coolant Tooling
Rego-Fix (www.regofix.com) offers CF coolant flush collets that the company says can be used with its powRgrip toolholding system, and the company says they are compatible with its PG 10, PG 15 and PG 25 series of toolholders. CF collets have three equally staggered serrations that allow coolant to be flushed along the sides of tools and to the tips of cutters to eliminate unwanted chip particulate.
Making productivity gains in drilling holes may not seem to be the most challenging machining problem, but there are three factors above all others that can affect drilling speed, tolerance and tool life:
Multiple Workholders Fit VMC
Providing 43 X 22 X 22-in. travels (X/Y/Z), the A-3 VMC handles large workpieces as well as multiple workholders containing small parts. Its 12,000-rpm CT-40-taper spindle uses P4 angular-contact bearings and a floating drawbar that reduces bearing pressure during tool clamping/unclamping.
Holemaking Trends Run Deep, Fast, and Dry
Holemaking, arguably the most basic of metalworking processes, is one area where shops can greatly improve returns on machine tool investments. It's easy to see how when one considers that 50 to 70% of all production time is spent making holes. Even small process improvements can boost production and drive down costs. However, the three holemaking techniques offering perhaps the greatest production gains are drilling more precise deep holes, drilling more holes in less time, and drilling dry.
Lean Success: How a toolmaker used lean to shorten lead times, increase quality and cut costs.
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"Has anyone had any experience with using a mixture of boiled linseed oil and paint thinner as a rust preventative?"
Vertical vs Horizontal Mill
"What are the main differences in usage between horizontal and vertical mills?"
Heating the Shop?
"I have a couple old kerosene heaters that I've been cleaning up. Would those be a good way to heat the place up?"
Tyrolit has developed the revolutionary VNX2 that are suited for reciprocating surface grinding of virtually any material. This new wheel is now available from stock. Contact Tyrolit at 800.366.4431 today.
Used Equipment Network
Used Equipment Network is a service that lists over 70,000 pieces of previously-owned industrial and professional equipment available for immediate purchase. Buyers and sellers are always in direct contact and there is no charge for use of the system. Click here to learn more.
Use Data. Get more competitive. Increase profit.
Machine shop managers will learn a systematic approach to improve operations by using AM′s benchmarking tools for Operations, Customer Satisfaction, Finance and Human Resources. Attendees leave with a plan to achieve continuous improvement, and a differentiating business strategy. Don′t miss this opportunity to improve your business. Held in Cleveland, November 7-9, 2007 at the Marriott at Key Center.
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FOUNDRY Management & Technology Weekly Update is a timely summary of news and feature reporting on metalcasting ideas and developments. Each Tuesday it delivers timely, topical information on the foundry and diecasting markets, and its customers and suppliers. It also links you to upcoming events, and connects you to a useful database of equipment, consumables, and services providers tailored to your professional needs. Click here to subscribe.
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