Look to Ed Fagan Inc. when you need Refractory Metals and Alloys like Molybdenum, TZM Molybdenum, Tungsten, Tungsten Alloy, Tantalum, Niobium and Rhenium. EFI offers Just-in-Time-Delivery, so all standard stock items can be shipped within 24 hours of your order, and all materials can be certified with shipment. No Order Too Small!

Roughingend millfeeds and speeds

Rougher cutter are used for roughing cut on component and they are also preferred to use inside holes there you need chip evacuation better and doing a finish cut later.

• Feeds and Speeds: Follow Grey Cast Iron recommendations. • Feeds:  0.003" per tooth as a starting point. • Speed: 75 - 750 sfpm with carbide tools; adjust to depth of cut. • End Milling:  Slight "climb" is best starting point.

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3/4 roughingend mill

Note: Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his/her own evaluation. Guidelines are not intended as warranties, either expressed or implied, or fitness for these or other purposes. The data presented are typical of average values for all metal removal operations. They are not a guarantee of minimum or maximum values. Due to the distinguishing characteristics of each project, some metal/alloys may require adjustments (+/-) of speeds and/or feed which should be performed in small steps. Each job has to be developed for best production results with optimum tool life.

• Turning/Boring:  Positive rake is recommended • Roughing:  0.050"/ 0.200" Depth of Cut: 0.008"/.010" Feed • Finishing: 0.010"/0.030" Depth of Cut: 0.003"/0.005" Feed • Turning Speed:  250/350 Surface feet per minute • Note: For above operations, air is the preferred method of cooling tools; coolant can be used.

Tungsten Alloys, in addition to their high density, radiation shielding and vibration absorption characteristics can be machined using standard tools and equipment.  These alloys can be drilled, milled, turned, and tapped using speeds and feeds similar to Grey Cast Iron.  Parameters and tooling to accomplish proper machining are listed below.

• Drilling: Use carbide tipped or solid carbide drills with air or coolant such as Molydisulfide (Moly-Dee) cutting fluid. Drill tap holes to 50-55% of thread hole requirement. • Tapping: Use straight flute, high alloy taps. For small thread holes, thread forming taps can be used. Nitrided or solid carbide taps will extend life of tap on long run jobs. Grinding • Use Aluminum Oxide type wheels ("J" grade typical) with coolant to remove grinding material rapidly. Milling • Feeds and Speeds: Follow Grey Cast Iron recommendations. • Feeds:  0.003" per tooth as a starting point. • Speed: 75 - 750 sfpm with carbide tools; adjust to depth of cut. • End Milling:  Slight "climb" is best starting point. Exotic Operations • Wire EDM; Solid EDM; Waterjet Cutting can be performed on Tungsten Alloys. Note: Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his/her own evaluation. Guidelines are not intended as warranties, either expressed or implied, or fitness for these or other purposes. The data presented are typical of average values for all metal removal operations. They are not a guarantee of minimum or maximum values. Due to the distinguishing characteristics of each project, some metal/alloys may require adjustments (+/-) of speeds and/or feed which should be performed in small steps. Each job has to be developed for best production results with optimum tool life.