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Posts Tagged ‘Turning’

www.glacern.com http Glacern Machine Tools Turning a rook chess piece out of 2.5″ diameter 6061 aluminum bar stock on a Mori Seiki NL2500SY-700 CNC Turning Center, utilizing the Y-axis, C-axis, and live tooling.

www.glacern.com http Glacern Machine Tools Mass production turning of an aerospace part. Material is 1.0″ diameter alloy steel. The machine is a Mori Seiki NL2500SY-700 CNC Turning Center with a Y-axis, C-axis on both spindles, live tooling, and a subspindle.

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This digital document is an article from Modern Machine Shop, published by Gardner Publications, Inc. on December 1, 1989. The length of the article is 461 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: Automatic measuring during or after finish turning on a CNC lathe. (computer numerical control) (column)
Author: Henry Stier
Publication: Modern Machine Shop (Magazine/Journal)
Date: December 1, 1989
Publisher: Gardner Publications, Inc.
Volume: v62 Issue: n7 Page: p130(1)

Article Type: column

Distributed by Thomson Gale

Automatic measuring during or after finish turning on a CNC lathe. : An article from: Modern Machine Shop

simulation of turning part (www.slhome.com). Programming for vocational education. EXSL.

CNC Turning process is a simple method of shaping a metal or wood on a lathe. It is a machine tool that spins or turns a block of material to achieve rotational symmetry in a machine shop. Turning can be done manually or using a CNC machining. The computer numerically controls CNC machine. A typical CNC machining center is designed to remove material using a rotating cutter that moves laterally to a work piece mounted onto a table or fixture.

In the CNC turning process, a piece of material is rotated on the lathe and a cutting tool is traversed along two axis of motion, transverse or longitudinal. The process is done in a machine shop. The cutting tool is used until the required depth and dimension is achieved. Turning can be on both sides, inside or outside as per the needs and specifications. The rotation occurs at the turning center that enables control of tool motion through computer programs that use numeric data. Parts that are too large to balance and cause difficulty in rotating around one center point, can be worked on a machining center featuring a U axis. The turning length is about 1000mm between centers and has a drive power and speed range up to 46kW and 4,000 revolution/minute respectively.

CNC turning process cuts the metal into various different shapes ranging from plain surface, taper ends, contour, and filter to radius profiles and threaded surfaces. These cut and turned metal pieces are used to create shafts, rods, hubs, bushes, pulleys and much more. Many industries also use it for fabricating parts and materials that have circular cross section. The process applies well to the most rigid materials that can be controlled exclusively with the software program tooling. The process does reduce the cost of production but on the other end, it limits the design flexibility.

CNC turning machines are said to deliver components at a faster production rate with optimum manufacturing accuracy. The automation of the CNC turning process allows reaching tight dimensional tolerances in every piece. Other advantages are high level of parts consistency or uniformity, achievement of optimum cycle times for all components and faster execution of larger volume. As machines have brought a revolution in the industrial world, new technologies provided by emachineshop, boost the use of metal products.

To produce hubs, rods, bushes, pulleys and shafts, CNC turning is utilized where the lathe generates materials after inserting the single cutter point in to the material turning. The procedure of cutting is executed through a cutting tool which is applied either parallel or at right angle to the axis, of work piece. The tool may also be fitted at an angle relative to the work piece axis for the machining angles and tapers. The work piece may be of any cross section, but the machine surface should be straight and tapered.
There are various shapes available in CNC like pointed, simple, radius with profile added with threaded surface, curve and fillet. The CNC machining is more economical than the CNC milling for producing the actual form through CNC turning. The material used for CNC turning possesses various qualities like material of work piece should be firm and can be of solid plastics. For the short running procedure of the mill, arrangements or alternative machine should be kept. CNC turning reduces the cost by minimizing the design elements.

CNC turning procedure is done through applying pressure on the work piece or the weaker material to form the flexible shapes of the material. Sometimes through CNC, the cut surface is formed by applying the helical feed as it results in rotation. The cutting procedure through which the work piece is eliminated from a material block by the help of the rotation of the tool is known as CNC milling. The work piece can rotate in perpendicular or circular way to produce different shapes and sizes. The cutting tool generally rotates in the CNC milling at an axis in a perpendicular form on the podium to generate various structures.

Variety of shapes that can be formed through CNC milling is 3D or 2D and some compound structured material. CNC milling for short procedure is also very economical. It is utilized to make different parts of engine, multifaceted mechanisms, enclosures and mold and custom tooling.

Thus,CNC turning is a very effective procedure to make various machine parts of various shapes which is very significant for running the machine.

Research has revealed that more than ten percent of all machine tools using hydrocarbon-based cutting oils will have a fire incident within five years after installation.? The results can be devastating.? For a machine shop owner, national fire codes likely required his shop building to be fitted with an automatic water-based fire sprinkler system prior to receiving a Certificate of Occupancy from a Local Authority having Jurisdiction, or local building code office.? Most jurisdictions would have made this determination of need based on criteria laid out in the NFPA Codes and Standards.

Unfortunately for the machine shop owner, it is very unlikely that a local code official would have advised of the need for automatic fire suppression inside the tools on the shop floor.? In the event of a fire inside of the machines, the fire would have to burn through the machine and activate a sprinkler head dozens of feet overhead before extinguishment could take place.? By the time a sufficient number of BTU’s would be expended by the growing fire for activation of the sprinkler head, the machine would be ruined.? It is also likely that the entire building could be lost, as well.

SEVO’s Flex family of automatic and completely self-contained fire suppression systems protect CNC machine tools and Swiss turning centers. This snap-in fire extinguishing technology installs in under an hour and can feature a pressure switch interface for activation of a machine E-stop.

Flex? uses a specially formulated heat-intelligent detection tube. Because each unit has all-in-one technology there is no need for any external sensor system or power supply making Flex? the most cost effective automatic fire extinguishing system available on the market.

SEVO’s systems are vibration and corrosion resistant, and are unaffected by low temperatures and will not activate before the pre-determined temperature has been reached.

? Self contained, compact, all-in-one heat-intelligent
? Self activated by temperature
? Snap-on simplicity
? No mechanical, electrical, battery systems required
? Rugged construction and maintenance free

A brochure or price quotation is available upon request.

Contact: Jeff Tilley at www.tilley-associates.com

(850) 508-9465