Exact machining parameters are best determined by 30 to 60second test cuts. Formulas specs 8002489003 9894636171 fax 9894633609 255 for additional help. It exhibits very good selfmated galling and metaltometal wear resistance. Speeds and feeds similar to those employed with 316 or 317 stainless are appropriate here. Super simple for beginners, powerful and flexible for pros. Gwizard cnc speeds and feeds calculator for milling. It is commonly used for various fasteners and pins that require strength and resistance to galling. Harvey tool speeds and feeds guide general machining. Factors including xturing, available horsepower, depth of cut, and coolant capabilities may signicantly aect performance. I am trying to turn a part that is nitronic 50, turning it is no problem but drilling it is another story. This information is provided as a guide to relative machineability, higher speeds are used with carbide tooling. A fully austenitic alloy originally designed as a wear alloy, considered to have the best galling resistance over the entire range of stainless steels. Apr 01, 2008 the problem with switching to a new and different method of machining is that your old and established expectations may not help you anymore. All cnc turning of the 2nd side of this stainless steel adapter for the plastics industry.
We are committed to ensure the safety of our customers, vendors and employees. The alloys described here work harden rapidly during machining and require more power to cut than do the plain carbon steels. Nitronic 60 alloy 218 uns s21800 price per kg factory. Speeds and feeds online calculator for optimum machine. Slow speeds, positive feeds and abundant resulfurized lubricant is significant to success in machinability of nitronic 60. Click here to find the right drill size for you reamer.
Chemical composition nominal analysis, weight percent. Start at low speeds and build up until cutting edges show excessive wear. Hard stainless steel cnc turning very enjoyable machining. I will double check speeds, feeds, and edge prep on the inserts in the a. Tool engagement angle, trochoidal milling, peeling, and all that jazz. Nitronic 60 stainless steel bar uns s21800 nitronic 60 is truly an all purpose metal. The premier source of tooling, parts, and accessories for bench top machinists. It is obvious, however, that variables of speed, cutting oil, feed and depth of cut will significantly affect these ratios. I drew it up looking something like the handbook showed, and the hss speeds in it are actually pretty close. I will be turning and internal grooving 2 inch bar stock in a daewoo with plenty of hoursepower, rigidity, and synthetic coolant. Verify speeds and feeds minimum drill overhang reduce number of peck cycles chipping on o. Im not at work, so i dont have the numbers home with a broken ankle. The yield strength of nitronic 60 is nearly twice that of 304 and 316 stainless steels. Nitronic 60s uniform corrosion resistance is better than 304 stainless in most environments.
Delving into the considerations for twist drill feeds and speeds. Jul 10, 20 machining nitronic 32 alloy requires slow speeds, positive feeds and abundant resulfurized lubricant. Apr 01, 2019 all cnc turning of the 2nd side of this stainless steel adapter for the plastics industry. Machining guidelines for machining high performance alloys. Speeds and feeds master library of harvey tools entire tool line up of specialty end mills, drills and cutting tools. Exact machining parameters are best determined by 30 to 60 second test cuts.
Cut thin to win cutting tools machining technology. Strain hardening is always a problem when machining stainless steel, and nitronic 60 will be even worse. Cutting force versus cutting speed after machining nitronic 33 steel with uncoated carbide tool. Sulfur chlorinated petroleum oil lubricants are suggested for all alloys except titanium. Ive machined nitronic 60 in the past, and i dont remember having this issue.
Pdf effect of cutting parameters on surface finish when turning. This stuff will work harden if you look at it wrong. Nitronic 60 provides excellent high temperature oxidation resistance and low temperature. Did some research on speeds and feeds, gave it a shot and, well, long story short. Speeds and feeds are comparable to those employed with 316 or.
The speeds for softer tempers can be increased in proportion to the reduction of yield strength. Machining nitronic grades high performance alloys, inc. With such a wide spread of materials under the generic heading of. The speeds presented are for toughmet 2 cx 90, toughmet 3 cx 110, and toughmet 3 at 110 tempers.
I think it would lead to a lot of broken taps and gnashing of teeth. Heat resistant super alloys application guide sandvik coromant. Positive feeds, slow speeds, and resulphurized lubricants are suitable for machining super alloy nitronic60. Nitronic 60 machinability back to nitronic machinability. Sandvik coromant machining calculator app is very easy to operate, just enter the input values and the results will show up. Generally, with these highly workhardening alloys you want to be pretty aggressive with the speeds and feeds. Machining data nitronic 60 a ea ed based on 1 dia annealed rb 95 5 hour form tool life using highspeed tools. I just wanted to write and thank your technical staff for being spot on with feeds and speeds. This alloy will be considered where parts are in relative motion, under load without lubricants. Chloride pitting resistance is superior to that of type 316 stainless. Corrosion properties the corrosion resistance of armco nitronic 60 stainless steel falls between that of types 304 and 316. Determine the spindle speed rpm and feed rate ipm for a milling operation, as well as the cut time for a given cut length. The speed and feed calculator provides over 50 years of machining experience to give the best speeds and feeds possible.
Machining data for nitronic based on 1 dia annealed rb 95 5 hour form tool life using high speed tools. It includes a calculator to figure the spindle speed required. Sandvik coromant machining calculator app for cnc machinist. This requires rigid tooling, heavy feeds and slower speeds. N60 excellent galling resistance at high temperatures. This information is provided as a guide to relative machinability. Parameter descriptions can be found in the information page, your preferences can be changed in settings. Trials have shown prodec 174 to provide up to 30% faster machining speeds without.
Carbide tools are suggested, for rates better than 50% of type 304. Regarding machining, nitronic 60 has at least twice the strength of 304 in the annealed condition, and therefore will require more cutting force during machining. Jan 15, 2002 speeds around 160 sfm and feeds of just 0. This is a high manganese, high silicon alloy with nitrogen strengthening. It is obvious, however, that variables of speed, cutting oil, feed and depth of cut will. The chip formed when machining duplex stainless steel is strong and abrasive to tooling. Milling operations remove material by feeding a workpiece into a rotating cutting tool with sharp teeth, such as an end mill or face mill. Machining duplex stainless steels the duplex stainless steels have yield strengths typically about twice that of the nonnitrogen alloyed austenitic grades, and their initial work hardening rate is at least comparable to that of the common austenitic grades. Weldability nitronic 40 is readily weldable using tig, mig and shielded metal arc welding methods. The actual speeds and feeds start from different sources. Reaming is done at half the speed and twice the feed as drilling. Pay very close attention to the information introduced in this unit and other units dealing with cutting speeds because cutting speeds have the greatest impact on tool life.
High performance stainless takes the gall n itronic 60 is truly an all purpose metal. Machining recommendations for toughmet rod tube and plate. Nitronic 60tm super alloy material property data sheet product. Based on 1 dia annealed rb 95 5 hour form tool life using highspeed tools. Nov 04, 2014 i had a job come in for 304 stainless steel. The oxidation resistance of nitronic 60 is similar to type 309 s. The carbide end mills come from niagra cutter carbide book,not the complete book, those speeds seem to be off, the drill speeds are a combo of precision speeds and. Machining speeds the following speeds are for single point turning operations using high speed steel tools. The carbide speeds and feeds are for the most part obsolete. This fully austenitic alloy performs well as a high temperature alloy for temperatures around 1800.
Mar 03, 2004 i created that information based on the machining. The problem with switching to a new and different method of machining is that your old and established expectations may not help you anymore. Milling speed and feed calculator determine the spindle speed rpm and feed rate ipm for a milling operation, as well as the cut time for a given cut length. Rolled alloys machining grade of 303 stainless steel is a fully resulfurized freemachining austenitic stainless steel melted and processed to maximize machinability. The little bit of information i can find suggest using speeds and feeds like 316 stainless. Always use the correct drill size when drilling the hole before you ream it. Nitronic 60 alloy 218 uns s21800 price per kg factory aisi mm. If you do try to tap the nitronic 60 i would keep the tap drill to the high side to minimize the depth of cut the tap has to make.
This rule still applies on the drill press as it does on the milling machine or the lathe. Nitronic 32 alloy can be welded using all welding techniques such as gas tungsten arc, gas metal arc and submerged arc welding. Machinability of nitronic 60 manufacturers, exporters. The speeds are for single point turning operations using high speed steel tools.
This page gives cutting speeds for turning, milling, and drilling of several different materials. Feed rate should be high enough to ensure that the tool cutting edge is getting under the previous cut thus. Nitronic 60 provides excellent high temperature oxidation resistance and low temperature impact. We were able to cut our machining time in half after the initial setup. Fill in the blanks left to right, top to bottom and gwizard instantly returns the best spindle speed and feed rate. Nitronic 32 alloy can be formed using all common forming techniques. Wear resistant cocrw cobalt 6b is a cobalt based chromium, tungsten alloy for wear environments where seizing, galling and abrasion are present. Im guessing 80120 sfm with carbide with a fast feed. It took years, we analyzed data from over 250 tooling catalogs, we built a powerful cutting physics engine with advanced algorithms that consider almost 60 different variables, we added ai machine learning algorithms, and we worked with over 100,000 cncers like yourself to make sure youd have. Save time and money by downloading and printing the speeds and feeds table for your specific tool, and simulate its running parameters and tool paths by accessing our complete library of simulation files. These rates are for carbide tools, type c2 for roughing, drilling and reaming. Finding feeds and speeds for these less often used cutters. Machining nitronic 60 stainless steel precision parts cox. Machined out of 155ph heat treated stainless steel.
The additions of 4% silicon and 8% manganese inhibit wear, galling, and fretting. Super alloy nitronic60 can be formed using standard techniques. Nitronic 60 is an allpurpose stainless steel alloy, ideal for parts that require wear and gall resistance at a lower cost. Click here for welding, machining and forming information for ar400 wear plate.
Nitronic 40 is machined to same methods as other austenitic stainless steels, and like those alloys, also work hardens during machining. Machining data nitronic 60 annealed based on 1 dia annealed rb 95 5 hour form tool life using highspeed tools. Check out our web site, the mc20 machinist calculator or, if you have a smartphone. The following speeds are for single point turning operations using high speed steel tools. By switching to prime, they increased the speed to 180 sfm and the feed to.
Anyone with experience, your advice would be welcome. The program will recommend the ideal solid carbide end mill, slitting saw or pcd and diamond coated tool for your application. All common machining practices can be used on this material. High performance stainless takes the gall volume 1, issue 3 n. Slow speeds are generally required with heavy cuts. If the linear feedrate calculated from the feeds and speeds above came out to be 10 ipm the programmed feedrate for the internal threadmilling cut would be. Stellite 6b hpa cobalt 6b uns r30016 high performance. Super alloy nitronic60 can be welded using common welding techniques such. Machining inconel grades high performance alloys, inc. Feed rate should be high enough to ensure that the tool cutting edge is getting under the previous cut thus avoiding workhardened zones. N 60 is known for its excellent galling resistance, even at elevated temperatures.
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