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TEe H N--- - 0 - LOG Y THE JOURNAL OF 'GEAR MANUFACTURIING : JANUARY I FEBRUARY 1993 SPECIAt FOCUS ON CUTTING TOOtS NEW CUnlNG TOOL DEVELOPMEN1S HIGH TlECHNOLOGY HOBS LINE OF ACTION: CONCEPTS & CALCULATIONS TOOTH WEAR CLASSIFICATION - PART n It's a Pfautee ...in stock and available today with these outstanding features .•.aUstandard! I!f'GE IFANUC Series 15 CNC ..with universal-menu programming to - fully automate setup IifFANUC DigitaJ AC servo drives on aU Saxe, as well as FANUC microprocessor -controlled hob spindle drive system i;i{Worktable with twe-start double :worm and worm gear drive i!f.Hob head with taDgential slide. including hydro-mechanical. clamping/unclamping .of bob bead wive] IlfQuick-cbange hob arbor clamping, including hydro- mechanical clamping attachment for outboard bearing support !if'SmaD footprint. design, including attached-tank hydraulic and recirculating lube system ~ Built and supperted by American Pfauter, conveniently located in Rockford. Illinois U.S.A. ...And mRch more! Umrled Pannershrp For the gear hobber you've aI.\\'ays wanted, 1351 Windsor Road Phone: 815-282·3000 call (815) 282-3000 Loves Park. IL 61132·2696 U.S.A. Telelax: e15-282·3075 CIRCLE "·1 on IREADER REPLY CARD Cutting Introduces ... Opti-GashT'1 Hobs In response to industry's demands of greater accuracy gears on efficient cutting geometry result for higher production and accu- fewer. more expensive machines. in higher cutting rates and many racies. and as a result of the The Opt i-Gash hoh has been more pieces per sharpening than successful introduction of our developed to meet these demand- with conventional solid or Wafer concept for throw-away ing and conflicting requirements. segmental hobs. tools. developed PMCf has the Our engineers designed this hob The resulting reduction in machine Opti-Gash" hob. around a specific chip load and change-over time. resharpening This hob, designed for a specific created a tool having an optimum and recoatinz cost!'>more than production application, optimizes number of gashes at a diameter compensate; for the reduced the hob design for maximum and length to suit the machine number of available sharpenings, benefits in p~oductivity and capability and part requirement. Accuracy? The Opti-Gash is generated gear geometry. The result is a hob which will available in all accuracy classes-« Until now. most hobs have been produce a high degree of form better than AA DIN or AGMA designed with the minimum accuracy - and a machine cutting standards if required. For a spe- number of gashes to produce a load generating low-spindle cific proposal on an Opti-Gash required gear tooth geometry cou- torques - producing as a conse- hob for your application, send pled with the maximum number quence the highest possible lead full part and machine data 1.0 your of available resharpenings, and index accuracy. local representative or contact Today's high costs of operation The low chip-load, high-quality the PMCT sales engineer for demand higher production rates tool steel and coatings, along with your area. er- aag Cutfing J; Limited Partnership 1351 Windsor Road, P.O. Box 2950, Loves Park, IL61132·2950 USA Telephone 815-877·8900 .• FAX 815·877·0264 CIRCLE A.-2 on RE.ADER REPLY CARD This is how America gears up for quality - Most of the universal CNC gear inspection systems sold In the U.s. come trom M&M Precision Systems. More than all our competitors combined. Why7 Because M&M systems give you the strongest competitive advantage. How? Consider these three examples: Easi.r' _.. eclion Once your part is on an M&M machine. the computer screen prompts you to enter specifications. Then you tell It what fea- tures you want to analyze. and the machine inspects the part. The next time. all you do is enter the part number. Irs that easy. More ea,paliIDly You get true [notjus: theoretical) index. lead and involute testing using imeractive Generative MetrOlogy techniques. The inspec- tion of blanks and cutting tools as well as gears. SPC and cutting tool software. And the ability to inspect gear surface finiSh. spiral bevel and hYPold gears. worms. involute scrolls, and male/female helical rotor vanes. Betta 'technica'. suP ..... nellseme. You'll get a choree of standard or custom engineered packages with speCific application software. And M&M programs are always written In EngliSh to avoid problems with translations or cultural difFerences. So you'll avoid clashes between your American results approach and orner countries' pr,ocess approach Get all the fast, fr,ee facts in the J 2-page M&M DC Gear .Analyzers brochure. Crrcle the number below. Call 513/ 859-8273. Or Fax 5 r 3/859-4452 today. And put your quality in gear. M&M p. REe/SIt:JN £,..SYSTEMS AN ACME·CLEVELAND COMPANY CIRCLE A·10 on READER REPLY CARD, - - -- - --~-----------~ CONTENTS JANUARY/FEBRUARY 1993 FEATURES New 'Cutting Tooll Deve'lopments in Gear :Shaping Technol'ogv J. C. Crockett Consultant. Otterton, Devoll, England __ __.__ 14 IHigh Technology Hobs William L. La n n i n c k Consultanr, Chicago" IL. __.__.,.."' .__. __ __ __ 22 'Line of Action: IConc'ep,ts& Callculatio,ns A,/! t o n i o Tu a, FHUSA. Barcelona, Spain & William E. McElroy. GMI.lndepend.ence. OH __ __ 28 Environmentally Safe Cutting Flluids fo:r Industriall Cutting. Lubricat:ion & Cleaning Neal Vandewalle ITW Fluid Products Group, mem's, GA __ __ ,__ __ 32 -- SPECIAL FEATURES Cover photo courtesy of Pfauter- Maag Cuttiug Tools. Limited IG:ear IFundamentalls Partnership, Loves Park, [L. Classification of TVipes8f IGear Tooth Wear - IPart n LOllis Fall r e CMD Transmissions, Cambrai, France __ __ __ __ __ ,.__ , 34· -- -- - - DEPARTMENTS P'ubliisher's Paige A Hopeful New year "" __ 1 Advertiser Index. Find the products and services you need 9 Sh,op Floor: Application Ana!lysis William A. Bradley. AGMA. Alexandria. VA & Do 11 M c V it ri e, Gear Engineers ..Inc .. Seattle. W A. __..__ __ __ ..Ii1 Vliewpoi,nt _ Let!crs- from our readers __ ,41 Management Matters: H:iriing & Firing the' OId,er' E.mp,loye'e Howard J. Rub in .& Ellen C. Auwarter. _ Davi & Gilbert, New York, NY __ 43 ICI!assifi,eds ~roducts. services, and information you can use __ __ __ __ 4·1 Calendar_ Events of int.ere. t. __ __." __ __ __. __ __ "' 48 GEAR TECHNOLOGY - lI0nmT & SOUl EDITORI:\L FINE COWBOY ARTIFACTS Publisher & Editor-in-Chief bridles '* buckles "* horsehair Mi.chael Goldstein bits *: books be/Is bolos "* "* Associate Publisher & Managing Editor chaps * spurs * saddles Pcg Short Senior Editor ancyBartels 9929 Venice Blvd. 'Technical Editors Los Angeles, CA 90034 Robert Errichcllo William L. Janninck (310) 202·0010 BY APPOImlE1w'T Do!! McViUie Robert. E. Smith '* western collectables '* FAX(iU0l202-l3~O ;\RT CIRCLE A-4 on READER REPLY ·CARD Art Director Jean Sykes Art Director Jcnmter Goland :\lARKETl:\:C Advertising Sales Manager Patricia Flam Sale Coordinator Donna·Marie Weir Administrati,ve Coordinator Deborah Doniglan Circulation Assistant Janice Jackson RANDALL PUHLlSIII;\JG STAFF President Michael 'Goldslein Vice President Richard Goldstein Vice President/General Manager Peg Short Controller Patrick _ ash Accounting Laura Klnnane AT' Consultant Marsha Goldstein J{,\;\;DALL PUBUSIII:\:C, I:\:C. 1.425 Lunt Avenue P.O. Box 1426 Elk Grove Village, IL 60007 (708) 437-6604 - V() I.. 10, NO.1 GEAR TECHJ~OLOGY. The JQYrn!!!-l of IGe-!H M!ilnLior.~lurlq ilSSN Q1'4}·68S81 .0;. pubh"bf.(I bimonthly b~ R.:uldall Pubh ..hlnj. [DC.. 142S Lum A:venut. PO. 80x 1426. iEl Grov" Village. IL fr0007. Subscrtpnon rates I~: MO.OO in the U.S.; S!iO-C1Oill; Canad.lj~ S5~..tHJHI a.Uother ceumnes. Second-Class postage paid Itt A rlinsto'A Jf{~m' Hcig,hn. ill, aed m ILddJtlcnal mailing crrtee. Randal! Publ j"hi~.s .Ill Ifill ~eli C:Ye"ry cfron 10 ensure that the processes described in GEAR TECHNOLOGY conform to sound engineerinJ precuce. N"eith~r.he ~ARCrt!!:s.INC. 1I,urhur.. nur the publ~:!>hef can be heM re:ipon.iible fOl injUriel: .~Pi!-,:. ,- 1.IH~d while: Iallo ....·ingrhe procedures dC'~cribcd. Sub.''''''ry Of Slar Cutter Company Po ..rmn ..ret- Send Qddn:!I!i ehunges 10 GEAR TECHNOLOOY. Tht 23461 Industrial Park. Drive. Farmington Hills, MI' 48335 Ioumul o{Cear M!lnyf'acl!.!rin,g. 1425 Lun! A.,.e:I1.!,je.P.O. BQ3: tol2ti. - 313/474-8200 FAX 313/474-9518 Elk Oro" ViU.ge.IL. 60007. l!7 OColurnl ... CQPyri,ghlcd by RANDALL PUBLISHING. INC ••• 1193 Articlej appearing in GEAR TECHNOLOGY m.ay 1101 be repr.:xJul:ed in whole or i.n pan 1IIInhou~the !!,'llprc'S:S'ptrml!iMOn ofth-t p!.Ihh'\ber (if CIRCLE:: A-5 on READER REPLY CARD Ibr :Qulhof, ,4 GEAR TECHN,OLOGY SHARPEN W t h YOUR NeweNC ADVANTAGE GSK400 Technology .KIJNZIIK' ew machinery offers cutting edge. CNC techoology. compared to outdated, GMI-Kanzaki mechanical controls. will sharpen The bottom line Is that youradvan- Kanzaki World Class Shaving tage because machines are good for your bottom line. Kanzaki's heavy the cost of a duty construction, state-of- new Gear the-art control package and Shaver may be premium gear shaving comparable to features deliver optimal restoring performance and accuracy. That means hardened slides obsolete for maximum rigidity and COST 'PRODUCTIVITY equipment. stability. improved 1001life and quicker set-ups with higher quality levels. GMI-Kanzaki world class shaVing machines will increase your production level's with no rejects. thereby enhancing overall shop profitability . GSK-400 REBUILT GSK-400 REBUILT ---- --- - GMI-Kanzski gives you the edge to emerge as a major player in a world economy.