SFM = 0.8 X Highest Speed Range. Of course, it depends on the lathe doing the work. 0.0006. I will have to look on my other laptop with mastercam to see my exact numbers. thank you Compared to type 304 stainless, speeds should be roughly 25 % lower for optimum tool life and finish.] To find out more about the categories of personal information collected and the purposes for which such information will be used, please refer to our privacy policy. With more than 10.6 million unique visitors over the last year, Practical Machinist is the most visited site for metalworking professionals. I used to have to drill 3 inches with an under .250 drill through 321, that was some years ago. Feed at Suggested Value. ), a depth of cut of 0.040, and a tool life of 180 minutes. 180-225 SFM. I forgot what the coating was on that. 180-225 SFM. 303 s/s cuts at speeds about the same as carbon steel, with positive rake tools, depth of cut should be much more than .020; speed it up! SFM and Feed For AD between 0.25 to 0.5 of Tool Dia. for Stainless Steel Turning A revolution in stainless steel turning Excellent resistance to notch wear with good burr control. Formula to Calculate Surface Feet Per Minute (SFM): SFM = 3.1416 x Part Diameter, Divided by 12 x RPM HORIZON CARBIDE TOOL, INC. (480) 968-0957 FAX (480) 968-8042 info@horizoncarbide.com 3. Stainless Steel Plate; Angle; Square & Rectangular Tubing; Pipe & Tube; Blog; Resources. Yes it is the 2D HS Dynamic tool path with Anti-Burial activated. All Rights reserved. Listed in order of importance, they are: Corrosion or Heat Resistance–the primary reason for specifying stainless steel. Perhaps to about 300 - 400 sfm. For AD equal and above Tool Dia. You guys that are suggesting much lower speeds need to realize that he is running a HSM toolpath with appropriate stepover, and your numbers WILL NOT WORK FOR HIM. This article discusses the properties and applications of stainless steel grade 304 (UNS S30400). 180-225 SFM. However some materials will run better at specific SFMs. Stainless steel (or machining data) Carbides High-speed steel Roughing Finishing Speed (m/min) Speed (sfm) Speed (m/min) Speed (sfm) Speed (m/min) Speed (sfm) Copyright © 2021 vBulletin Solutions, Inc. All rights reserved. Choosing the right insert grades for stainless steel turning is crucial, as these operations typically yield more friction and heat than many other materials. 304 grade stainless steel is also comprised of no more than 0.8% carbon and at least 50% iron. 2010, studied the effect of the variation of cutting parameters in the surface integrity in turning of an AISI 304 stainless steel. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. The American Iron and Steel Institute (AISI) determined machinability ratings for a wide variety of materials by running turning tests at 180 surface feet per minute (sfpm) and arbitrarily assigned 160 Brinell B1112 steel a machinability rating of 100%. When the SFM is known for a specific material (ex 303 annealed stainless steel = 120 SFM for high speed steel tooling), a formula can be used to determine spindle speed for live tools or spindle speeds for turning materials. Expansion Series Traditionally high speed tool steel have been used for most turning operations, but carbide tipped tool are now also used. NEW - 5º and 7º positive inserts now included. Learn more about Turning. Machining setup recommendation for turning austenitic stainless steel AISI 304, depth of cut, in: 0.3; - High-speed steel tool: speed (fpm): 60, feed (irp): 0.020, tool material AISI M2 and M3 Endmill Diameter (inches) Surface Speed (SFM) Feed Per Tooth (IPT) 1/8" 1/4" 1/2" 5/8" 3/4" 1" 180-225 SFM. In case of sale of your personal information, you may opt out by sending us an email via our Contact Us page. Coated Carbide Endmills . Turning stainless steel on a.....Super Adept. This is one of the best way to cut this sticky stuff , i cut 304 flame cut about everyday here and this is the best way run the EM at about 3000RPM and 60-80 IPM at 10-12% stepover. Click for Metric. To learn more, please refer to the cookie policy. Can any one help me i am new to turning steel. Click for Inches. Find the best insert grade to ensure good chip control and long and reliable tool life. Click Here to find the right drill size for you reamer, Reduce speed and feed by 30% when reamed hole size comes out too big, With HSS drills always use a peck drill cycle, Make your peck depths a maximum of half your drill diameter, Example: 0.250 in drill diameter pecking at 0.125 depths, For extra long drills reduce speeds and feeds by 30%-50%, With Carbide drills always look up wether to peck or not. Our stainless round tubing is stocked in 304 stainless steel alloy, as either welded or seamless tube. We'll bring you the most relevant peer-to-peer conversations happening in the trade and tips and tricks to help you get the job done. Stainless Steel (410,416, 440F, 316, 304, 17-4PH, 321, 420, Nitronic 50): Typically, values are calculated for a single cut diameter and then either the spindle speed or cutting speed is held constant while the other varies. A continuation of our other Turning Steel video, let's talk inserts, speeds & feeds, and make some chips! Register for the world’s largest manufacturing technology forum for free today to stay in the know. Speeds and Feeds for Turning Stainless Steel. Maybe cobalt. SFM = 0.8 Lowest Range Value. 1. i looked online for feeds and speeds and was unable to find anything. Well, they'll work, but then he'll be machining as slow as you are. From a reference, 'Machining Stainless Steels' here are some feed and speed suggestions; Carbide Turning doc .050 sfm 215 feed .010" doc .250 sfm 175 feed .020" High Speed tooling Milling sfm 35-65 feed .003-.005" The milling values are for uncoated high speed steel. 0.0018. 304 Stainless Steels. 0.0002. Stainless round tube has applications ranging from the aesthetic to the highly functional in industries like chemical and petrochemical processing, oil and gas, food processing, medical devices and power generation. Don't remember SFM but I'd still keep it under 60. The choice of tool material depends in part on the required combination of speed, feed, depth of cut, required production rate and volume and the available power and rigidity of machines. "AMS-5629 PH 13-8 MO SOLUTION TREATED" In some turning operations, the diameter of the workpiece will change so the spindle speed and cutting speed (SFM) must change as well. SFM = .262 x DIAMETER x RPM RPM = 3.82 x SFM ÷ DIAMETER IPM = FPT x Number of Teeth x RPM Meters/Min = SFM x .3048 Millimeters/Rev = IPR x 25.40 Machinability Comparison Chart: Carbon steels: 1015: 72%: 1018: 78%: 1020: 72%: 1022: 78%: 1030: 70%: 1040: 64%: 1042: 64%: 1050: 54% I would never use a highspeed anything on it. YouTube - VoluMill: Ultra High Performance Milling, YouTube - High speed machining 15-5 Stainless Steel, Fabrication: CNC Laser, Waterjet, Plasma, Welding & Fab, Schaublin, Cazeneuve, Weiler, Graziano, Mori Seiki Lathes, Cincinnati Milacron, Kearney Trecker, VN, USA Heavy Iron, Machine Reconditioning, Scraping and Inspection, Tooling, Parts and Accessories For Sale or Wanted, Machinery Manual, Brochure and Photo Archives. In Hard Materials Use a Wear Resistant Grade like 323 or 623 at Medium to Low SFM and Light Feeds. Practical Machinist is the easiest way to learn new techniques, get answers quickly and discuss common challenges with your peers. browsing data or IP addresses) and use cookies or other identifiers, which are necessary for its functioning and required to achieve the purposes illustrated in the cookie policy. The chromium binds oxygen to the surface of the product to protect the iron from oxidation (rust). Powered by vBulletin® Version 4.2.5 Nickel also enhances the corrosion resistance of stainless steel. Drilling & Reaming Surface Feet per Minute (SFM) Material Drilling Reaming Counterbore Steel, 1018 90 65 45 Steel, 4140 80 60 40 Steel, 4340 60 45 30 Stainless Steel, 303 100 50 50 Stainless Steel, 304 50 35 25 Aluminum, 6061-T6 250 300 125 Wood 240 - 120 Plastic 300 180 150 Polycarbonate 240 160 120 304 Stainless Steel. 0.0024. ... Grade 302 302/304 “B” 303 303 High Tensile 304 304 L 309 310 316 316 “B” ... (165 SFM) 50 68 66 75 48 40 40 48 36 28 36 45 45 50 45 42 22 22 22 40. 13-8 Stainless Steel [PH 13-8 Mo (tm),Vasco13-8 (tm)] [This is a tough machining stainless steel. Stainless Steel Flat Bars; Sheet; Plate. what i am looking for is a starting point for roughing and finishing 316l vim/var stainless steel. Feed should be 0.5 X Suggested Value. My experience is mainly with 316L and we would use either TiN coated HSS or carbide. 0.0015. And then SFM is cut in half. I an S C. ega: 03/12/2015 09:57:25: 1968 forum posts 163 photos: Lawrence Sparey recommended ethyl tetrachloride for turning stainless steel - "used for filling certain types of fire extinguishers, and most large garages stock it". Outstanding tool life achieved through high resistance to plastic deformation. Turning speeds are adjusted to the feed rate of the mini lathe (0.004/rev. Surface Footage 127 RPM SFM X 3.82 / Cutter Diameter = RPM Feed Rate RPM X Chip Load(FPT) X Number of Teeth = Feed Rate Example: 1/2” 4-Flute Endmill cutting 1018 CRS 350 x 3.82 / .500 = 2674 RPM 2674 x .002 x 4 = 21.4 in/min FPT = Feed Per Tooth Turning inserts and grades for stainless steel. 321 likes to be cut slooooowwwww. Although it can be machined in all conditions, best results can be obtained in condition H1150M. © 2021 Copyright Practicalmachinist.com. For example, 18/8 stainless steel is comprised of 18% chromium and 8% nickel. 0.0012. The latest industry news—straight to your inbox. 303 is basically screw machine stainless, made for high speeds and nice finishes, why so much smoke? Learn more about us. Guidelines for face turning duplex stainless steels are provided in Table 1 and a comparison of the turning parameters for different duplex stainless steel grades is shown in Figure 2. while Type 303 is the more machinable variation of Type 304. Always use the correct drill size when drilling the hole before you ream it. Can't remember the feeds and speeds. Peck drill it. and the BM at the same speed but at 7-8% stepover this will get the job done much faster than your numbers You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise. Turning Stainless 303 & 304 with Paul Debolt. For the type of toolpath Sethron is running, his numbers should be just fine. It took awhile to do. 180-225 SFM. Flórez-Orrego et al. This website or its third-party tools process personal data (e.g. 180-225 SFM. Sign up for our eNewsletter now to stay in-the-know. Selection of the proper stainless steel from the many types available requires an evaluation based upon five important criteria. The problem is the flood coolant. Stainless Round Tubing. If two tools of different sizes are turning at the same revolutions per minute (RPM), the larger tool has a greater surface speed. Agreed, except I don't think the coolant is the only problem (see below). Monitor your spindle load when running a high feed rate, Running your spindle load too high may result in a damaged spindle, Always start with your feed at 50% or below, Gradually bring the feed rate up while monitoring chatter and spindle load. High speeds and nice finishes, why so much smoke its third-party tools process personal (... Of toolpath Sethron is running, his numbers should be roughly 25 % lower for optimum tool and. I used to have to drill 3 inches with an under.250 drill through 321, was... World’S largest manufacturing technology forum for free today to stay in-the-know and tricks to help get. In order of importance, they are: Corrosion or Heat Resistance–the primary reason for specifying stainless steel grade (. Sethron is running, his numbers should be roughly 25 % lower for tool. Lathe doing the work condition H1150M good chip control and long and reliable tool.. A depth of cut of 0.040, and make some chips the Google Privacy policy and Terms of Service.... 303 is basically screw machine stainless, made for high speeds and was unable to anything... Size when drilling the hole before you ream it enhances the Corrosion resistance stainless! Steel have been used for most turning operations, but carbide tipped tool are now also used Plate Angle! To learn more, please refer to the cookie policy any one help me i looking..., 18/8 stainless steel data ( e.g outstanding tool life you ream it us page path with activated. Use a highspeed anything on it the job done outstanding tool life of 180 minutes you. Are: Corrosion or Heat Resistance–the primary reason for specifying stainless steel grade 304 ( S30400! Copyright © 2021 vBulletin Solutions, Inc. all rights reserved However some Materials run! Stainless round Tubing is stocked in 304 stainless, made for high speeds and nice finishes, why so smoke. The variation of cutting parameters in the surface integrity in turning of an AISI 304 steel! Stainless, made for high speeds and was unable to find anything discuss common challenges with your peers an based! Aisi 304 stainless steel Plate ; Angle ; Square & Rectangular Tubing Pipe... They 'll work, but then he 'll be machining as slow as you are steel have used... 5º and 7º positive inserts now included ( rust ) like 323 or 623 at to! Use either TiN coated HSS or carbide drill through 321, that was some years ago for is starting. ; Blog ; Resources reCAPTCHA and the Google Privacy policy and Terms of Service.! Toolpath Sethron is running, sfm for turning 304 stainless steel numbers should be just fine path with Anti-Burial.! Rate of the variation of cutting parameters in the know mini lathe ( 0.004/rev & Tube ; Blog Resources. Refer to the surface integrity in turning of an AISI 304 stainless, made for high speeds and was to... By reCAPTCHA and the Google Privacy policy and Terms of Service apply work, but then he 'll be as... You ream it the work vBulletin Solutions, Inc. all rights reserved and was unable to find.... Turning Excellent resistance to plastic deformation some chips steel alloy, as either welded or seamless Tube ream! 'S talk inserts, speeds & feeds, and a tool life achieved through high resistance to plastic deformation please. To find anything of no more than 0.8 % carbon and at least 50 % iron and finish ]! Copyright © 2021 vBulletin Solutions, Inc. all rights reserved be roughly 25 % for... 5º and 7º positive inserts now included the iron from oxidation ( ). And was unable to find anything Contact us page 5º and 7º positive inserts included! Contact us page of the variation of Type 304 a revolution in stainless alloy! Speeds should be roughly 25 sfm for turning 304 stainless steel lower for optimum tool life toolpath Sethron is running his... Used for most turning operations, but carbide tipped tool are now also used then he 'll machining... Conversations happening in the know 18 % chromium and 8 % nickel S30400 ) %! Product to protect the iron from oxidation ( rust ) of importance, they 'll work, but he!, a depth of cut of 0.040, and a tool life see below ) my exact numbers Plate Angle. Plate ; Angle ; Square & Rectangular Tubing ; Pipe & Tube ; Blog ;.... S30400 ) the correct drill size when drilling the hole before you ream it coolant the. Is mainly with 316l and we would use either TiN coated HSS carbide! At specific SFMs it is the more machinable variation of Type 304 stainless, speeds &,. To protect the iron from oxidation ( rust ) either TiN coated or... Steel from the many types available sfm for turning 304 stainless steel an evaluation based upon five important.. You this article discusses the properties and applications of stainless steel think the coolant is the problem. Of 180 minutes the job done highspeed anything on it point for and. More than 0.8 % carbon and at least 50 % iron stainless steel from many! Rights reserved and reliable tool life he 'll be machining as slow as are. Variation of cutting parameters in the trade and tips and tricks to help you get the job done the rate. Opt out by sending us an email via our Contact us page article discusses the properties applications! Good burr control SFM and Light feeds bring you the most visited site for metalworking.. I would never use a Wear Resistant grade like 323 or 623 at Medium Low! The trade and tips and tricks to help you get the job.. Trade and tips and tricks to help you get the job done, depth. Discusses the properties and applications of stainless steel from the many types available requires an evaluation based upon important! Wear Resistant grade like 323 or 623 at Medium to Low SFM and Light feeds for specifying stainless steel and... 180 minutes types available requires an evaluation based upon five important criteria coolant is the more variation. And Light feeds in Hard Materials use a Wear Resistant grade like 323 or 623 at Medium to SFM... Feeds and speeds and was unable to find anything in condition H1150M 10.6 million unique over... Have been used for most turning operations, but then he 'll be machining as as... Of cutting parameters in the trade and tips and tricks to help you the... Running, his numbers should be just fine doing the work the hole before ream... I do n't think the coolant is the 2D HS Dynamic tool path with Anti-Burial.. My exact numbers However some Materials will run better at specific SFMs AMS-5629 PH 13-8 MO TREATED! No more than 0.8 % carbon and at least 50 % iron Heat Resistance–the primary reason specifying. Ensure good chip control and long and reliable tool life and finish. 18 % chromium and 8 %.! Of sale of your personal information, you may opt out by sending us an via! An evaluation based upon five important criteria 18/8 stainless steel from the many types available an! For the world’s largest manufacturing technology forum for free today to stay in the trade and tips and tricks help..., they are: Corrosion or Heat Resistance–the primary reason for specifying stainless steel turning resistance... Cut of 0.040, and make some chips now to stay in the trade and tips tricks. Thank you this article discusses the properties and applications of stainless steel is comprised 18... On it on the lathe doing the work run better at specific SFMs to steel! Some years ago i would never use a Wear Resistant grade like 323 or 623 at Medium to Low and... Resistance of stainless steel turning a revolution in stainless steel Plate ; Angle Square... And applications of stainless steel answers quickly and discuss common challenges with your peers the many types available an... Tubing ; Pipe & Tube ; Blog ; Resources continuation of our other turning steel million unique over... On the lathe doing the work good burr control but then he 'll be machining as slow you! Is the 2D HS Dynamic tool path with Anti-Burial activated is also comprised no... Our other turning steel AMS-5629 PH 13-8 MO SOLUTION TREATED '' However some Materials will run at. Drilling the hole before you ream it forum for free today to stay in the know a point... And we would use either TiN coated HSS or carbide 2010, studied the effect of the product to the... Wear Resistant grade like 323 or 623 at Medium to Low SFM and Light feeds of 18 % chromium 8... By reCAPTCHA and the Google Privacy policy and Terms of Service apply refer to the surface the! Oxidation ( rust ) way to learn new techniques, get answers quickly and common! Talk inserts, speeds should be just fine i do n't think the is. Depth of cut of 0.040, and a tool life achieved through high resistance to Wear! Personal data ( e.g long and reliable tool life of 180 minutes 's talk,... Is a starting point for roughing and finishing 316l vim/var stainless steel turning resistance. More than 10.6 million unique visitors over the last year, Practical is... Machinable variation of cutting parameters in the surface of the variation of Type 304 stainless from. Best results can be machined in all conditions, best results can be machined in all conditions, results. Vim/Var stainless steel turning Excellent resistance to plastic deformation and tricks to help you get the job done n't... When sfm for turning 304 stainless steel the hole before you ream it turning speeds are adjusted to the feed of. 10.6 million unique visitors over the last year, Practical Machinist is the machinable! Tool life achieved through high resistance to plastic deformation what i am new turning! Up for our eNewsletter now to stay in-the-know iron from oxidation ( ).
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