'Breaking news' was not a good thing for a broach maker: as coolants broke down, problems with its grinding operation rose.General Broach Co., Morenci, MI, had coolant-splitting problems with the water-soluble coolants they used: because of the plant's hard water, the emulsion would fall apart. [ILLUSTRATION OMITTED] As a leader in the manufacture of spiral gullet gullet /gul·let/ (gul´it) the esophagus. gul·let n. 1. The esophagus. 2. The throat. gullet see esophagus. and button gullet broach bars, General Broach--GBC--had to take extra measures to ensure the concentration of coolant coolant (kōō´l  nt),n remained at the proper level to maintain a tight emulsion. Beginning as a tooling operation in the 1940s, the company found business in the automotive industry. It was designated as the first in its industry to become a Ford Q1 supplier, and was one of the first to become ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9000 certified. Five years ago, 90 percent of GBC's business was automotive-related. It supplied broaches to cut the internal, external, and blind splines for gears that go into automotive power-train parts. Because of the auto industry climate, GBC GBC Game Boy Color GBC Global Business Coalition GBC Green Building Council GBC George Brown College GBC Great Basin College (Nevada) GBC General Binding Corporation GBC Greater Baltimore Committee GBC Goldey-Beacom College diversified. It changed its focus to aerospace customers and OEM (Original Equipment Manufacturer) The rebranding of equipment and selling it. The term initially referred to the company that made the products (the "original" manufacturer), but eventually became widely used to refer to the organization that buys the products and manufacturers of off-road equipment, agricultural equipment, firearms, and hand tools. It manufactures broaches with diameters from 0.3" to 8.5" in diameter and up to 96" long. General Broach grinds three different types of steel alloy material, M4, M2, and T-15. The lathe department trims stock to the required diameter, then the bars are hardened in a salt heat-treat operation that reaches 2,100[degrees]F. The treating process can take up to three weeks. During treatment, the bars' temperature must be slowly increased so that both the inner and outer cores of the broach bar reach a hardness of 64 to 66 [R.sub.C]. After the bars are hardened, they are ground with vitrified CBN CBN - call-by-name wheels taking off as much as 0.1" per pass. [ILLUSTRATION OMITTED] Coolant Splitting Problems GBC encountered splitting problems that translated into stress cracking and burn marks on the broach bars it was grinding. Because of these problems, it had to slow its grinding process--grinding at a slower speed and also reducing the amount of stock removed on each pass to insure the integrity of the part. To worsen matters, the coolants it was using left slime on top of its sumps as the emulsion weakened and clogged its paper filters, causing rapid indexing of the filter paper. The company had to continually add coolant to keep the concentrate at the right level and the emulsion as tight as possible. Because of the coolant splitting and the problems associated with it--rancidity, corrosion, and poor broach bar finishes--GBC evaluated NuSol from Chemtool Inc., Crystal Lake, IL. GBC prefers mineral oil coolants because of the increase in lubricity lu·bric·i·ty n. The quality or condition of being lubricious. [Late Latin l  bricit for their part finishes and for increased depth of grind.
Once installed, GBC saw a 20 percent increase in production. The lubricant alleviated burning and stress cracks of the broach bars and increased feed rates, which translated into an additional 15 percent more production. GBC was able to grind more stock with each pass. An added benefit was NuSol did not go rancid ran·cid adj. Having the disagreeable odor or taste of decomposing oils or fats. rancid having a musty, rank taste or smell; applied to fats that have undergone decomposition, with the liberation of fatty acids. as their previous coolants had. NuSol was also less expensive for GBC because operators did not have to continuously add coolant into the systems. The company reduced coolant consumption by 30 percent because it did not dump its sumps as often and it used less make-up coolant concentrate on a daily basis. Chemtool, Inc. Visit www.rsleads.com/711mn-220 for more information Metalworking Lubricant for Food and Medical Applications Accu-Lube LB-2000FM is a metalworking lubricant specifically designed to meet the needs of the food and medical industries. It is a natural, environmentally-safe metalworking oil for use in medical applications requiring machining, drilling, and tapping small diameters. It is applicable for sawing of solids up to 6" in diameter as well as tubing. It is consumed in the cutting process. It is non-toxic and biodegradable, eliminates flood coolant, and is safe for use on all metals. It is available in one and 55 gal containers. It meets guidelines specified by the FDA FDA abbr. Food and Drug Administration FDA, n.pr See Food and Drug Administration. FDA, n.pr the abbreviation for the Food and Drug Administration. in 21 CFR CFR See: Cost and Freight 178.3570 for incidental food contact. ITW ITW In The Wild (informatics, antivirus research) ITW Information Theory Workshop (IEEE) ITW Into Thy Word (religion) ITW Into the Woods Rocol North America, Glenview, IL www.rsleads.com/711mn-222 Clear, Low Foaming Synthetic Fluid Cimtech Synthetics provide clear, clean, low foaming, synthetic metalworking fluid for both heavy- and light-duty grinding and machining operations of ferrous and non-ferrous metals One method of classifying metals is by their content, and one common division is into ferrous metals and non-ferrous metals. The term ferrous is derived from the Latin "Ferrum" which means "containing iron", thus ferrous metals contain iron and non ferrous metals do not. . The Cimtech fluids are formulated to reject tramp oil while providing a transparent substance. The Cimtech line can extend sump life, improve tool life up to 40 percent, and increase productivity up to 20 percent. Cimcool, Cincinnati [ILLUSTRATION OMITTED] www.rsleads.com/711 mn-221 Hydraulic-compatible Neat-cutting and Grinding Fluids Mobilmet 760 is an active, neat cutting, and grinding fluid series. Formulated with base oils and additives, the lubricants are for use in cutting stainless steel stainless steel: see steel. stainless steel Any of a family of alloy steels usually containing 10–30% chromium. The presence of chromium, together with low carbon content, gives remarkable resistance to corrosion and heat. , titanium, nickel alloys and tool steel. The neat-cutting and grinding fluids exhibit anti-wear properties to minimize unscheduled maintenance and extend component service life. The lubricants are chlorine-free and come in three different viscosity grades, designed for applications such as broaching broaching: see quarrying. , gear manufacturing, and tapping. The fluids are compatible with the manufacturer's hydraulic, spindle, and slideway Slide´way` n. 1. A way along which something slides. Noun 1. slideway - sloping channel through which things can descend sloping trough, chute, slide coal chute - a chute for coal oils to help eliminate downtime associated with cross contamination. Exxon Mobil Corp., Irving, TX [ILLUSTRATION OMITTED] www.rsleads.com/711 mn-223 Magnesium Machining Fluid Blasocut BC37MG is designed for magnesium machining. It avoids instability, separation, and short fluid life associated with machining magnesium. It is a mineral oil-based, chlorine-free liquid tool. It is also suitable for other ferrous and non-ferrous materials such as brass and bronze, as it will not form insoluble lead soaps. Blaser Swisslube, Inc., Goshen, NY [ILLUSTRATION OMITTED] www.rsleads.com/711 mn-224 Touch-up Blackener black·en v. black·ened, black·en·ing, black·ens v.tr. 1. To make black. 2. To sully or defame: a scandal that blackened the mayor's name. 3. Presto Black BST (convention) BST - British Summer Time. The name for daylight-saving time in the UK GMT time zone. 4 brush-on liquid is a fast-acting, cold blackener for iron and non-stainless steels. When applied to any clean ferrous metal surface, the BST4 solution blackens within 30 seconds and forms a durable, black finish that can be topcoated to form a black oxide. It is a fast-acting blackener of remachined areas or reworked metal parts and for quick repair of scratches or damaged areas on parts with a previously black-oxide finish. When the surface has turned sufficiently black, the liquid can be rinsed off with cold water. It will withstand the same degree of salt spray exposure as original black oxide. Birchwood Casey, Eden Prairie, MN [ILLUSTRATION OMITTED] www.rsleads.com/711mn-225 |
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