STAVAX ESR - Uddeholm

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STAVAX ESRMachiningrecommendationsThe cutting data below are to be considered asguiding values which must be adapted to existinglocal conditions. More information can be found inthe Uddeholm publication “Cutting Data Recommendation”.TURNINGTurning with carbide Turning withRough Fine high speedCutting data Rough Fine steelparameter turning turning Fine turningCutting speed (v c )m/min 160–210 210–260 18–23f.p.m. 525–690 690–850 60–75Feed (f)mm/r 0,2–0,4 0,05–0,2 0,05–0,3i.p.r. 0,008–0,016 0,002–0,008 0,002–0,01Depth of cut (a p )mm 2–4 0,5–2 0,5–3inch 0,08–0,16 0,02–0,08 0,02–0,1Carbidedesignation ISO P20–P30 P10 –Coated Coatedcarbide carbide orcermetMILLINGFace and square shoulder face millingMilling with carbideCutting data parameter Rough milling Fine millingCutting speed (v c )m/min 180–260 260–330f.p.m. 600–865 865–1080Feed (f z )mm/tooth 0,2–0,4 0,1–0,2in/tooth 0,008–0,016 0,004–0,008Depth of cut (a p )mm 2–4 0,5–2inch 0,08–0,16 0,02–0,08Carbide designation ISO P20–P40 P10–P20Coated carbide Coated carbideor cermetDRILLINGHigh speed steel twist drillsDrill diameter Cutting speed (v c ) Feed (f)mm inch m/min f.p.m. mm/r i.p.r.–5 –3/16 12–14* 40–47* 0,05–0,10 0,002–0,0045–10 3/16–3/8 12–14* 40–47* 0,10–0,20 0,004–0,00810–15 3/8–5/8 12–14* 40–47* 0,20–0,30 0,008–0,01215–20 5/8–3/4 12–14* 40–47* 0,30–0,35 0,012–0,014* For coated HSS drill v c =20–22 m/min. (65–70 f.p.m.)Carbide drillType of drillCutting data Indexable Solid Brazedparameter insert carbide carbide 1)Cuttingspeed, (v c )m/min 210–230 80–100 70–80f.p.m. 690–755 265–330 230–265Feed, (f)mm/giro 0,03–0,10 2) 0,10–0,25 2) 0,15–0,25 2)i.p.r. 0,0012–0,004 0,004–0,01 0,006–0,011)Drills with internal cooling channels and brazed carbide tip2)Depending on drill diameterGRINDINGA general grinding wheel recommendation is givenbelow. More information can be found in theUddeholm publication “Grinding of Tool Steel”.Wheel recommendationSoft annealed HardenedType of grinding condition conditionFace grindingstraight wheel A 46 HV A 46 HVFace grindingsegments A 24 GV A 36 GVCylindrical grinding A 46 LV A 60 KVInternal grinding A 46 JV A 60 IVProfile grinding A 100 LV A 120 KVEnd millingType of end millCarbideCutting data Solid indexable High speedparameter carbide insert steelCutting speed (v c )m/min 120–150 170–230 25–30 1)f.p.m. 390–500 560–755 85–100Feed (f z )mm/tooth 0,01–0,20 2) 0,06–0,20 2) 0,01–0,3 2)in/tooth 0,0004–0,008 0,002–0,008 0,0004–0,01Carbidedesignation ISO – P20–P30 –1)For coated HSS end mill v c =45–50 m/min. (150–165 f.p.m.)2)Depending on radial depth of cut and cutter diameter6
STAVAX ESRWeldingGood results when welding tool steel can beachieved if proper precautions are taken to elevatedworking temperature, joint preparation, choiceof consumables and welding procedure.For best result after polishing and photo-etching useconsumables with the same composition as in themould.Welding method TIG MMAWorking temperature 200–250°C 200–250°CWeldingSTAVAXconsumables TIG-WELD STAVAX WELDHardness after welding 54–56 HRC 54–56 HRCPolishingSTAVAX ESR has a very good polishability in thehardened and tempered condition.A slightly different technique, in comparison withother Uddeholm mould steels, should be used. Themain principle is to use smaller steps at the finegrinding/polishingstages and not to start polishingon too rough a surface. It is also important to stopthe polishing operation immediately the lastscratch from the former grain size has beenremoved.More detailed information on polishing techniquesis given in the brochure “Polishing of tool steel”.Heat treatment after welding:Hardened conditionSoft annealedconditionTemper at 10–20°C (50–70°F)below the original temperingtemperature.Heat through to 890°C (1630°F) inprotected atmosphere. Then cool inthe furnace at 20°C (40°F) per hourto 850°C (1560°F), then at 10°C(20°F) per hour to 700°C (1290°F),then freely in air.Further information is given in the Uddeholmbrochure “Welding of Tool Steel”.Further informationPlease contact your local Uddeholm office forfurther information on the selection, heat treatmentand application of Uddeholm tool steels, includingthe publication “Steel for moulds”.Photo-etchingSTAVAX ESR has a very low content of slag inclusions,making it suitable for photo-etching. Thespecial photo-etching process that might benecessary because of STAVAX ESR’s good corrosionresistance is familiar to all the leading photoetchingcompanies.Further information is given in the Uddeholmbooklet “Photo-etching of tool steel”.Mould in STAVAX ESR for producing clear plastic bowls.7
Page 1 and 2: STAVAX ESRStainless mould steel
Page 3 and 4: STAVAX ESRGeneralSTAVAX ESR is a pr
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STAVAX ESR - Uddeholm

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