C U T T E R T Y Pe S (M Ill) - JNKVV

Mindworks Step Bore Finishing Systems Engis Corporation Open Cutter Types (Mill) Mill in the Shop

Milling cutters are cutting tools typically used in milling machines to perform milling operations and occasionally in other machine tools. They remove material by their movement within the machine or directly from the cutter's shape. Milling Machine Tooling Overview

Various types of mill cutters: Tool/Step Description Milling Cut t ers (excluding end mills): Used for a variet y of operat ions from facing st yles (squaring and smoot hing faces), as well as cut t ing angles and shapes, as well as grooves and slot s.[1] Milling Cutters Slit t ing Cut t ers: Used for cut t ing a narrow slit int o mat erial, not used for removing lot s of mat erial. Slitting Cutter Gear Cut t ers: Used for cut t ing t eet h int o st ock t o make a gear.[2]

Gear Cutter End Mills: End mills are t ools which have cut t ing t eet h at one end, as well as on t he sides, t hey are used for a variet y of t hings including facing an edge, and cut t ing slot s or channels.[3] End Mills

End Mills: An endmill is a type of milling cutter, a cutting tool used in industrial milling applications. It is distinguished from the drill bit in its application, geometry, and manufacture. While a drill bit can only cut in the axial direction, a milling bit can generally cut in all directions, though some cannot cut axially. End mills are used in milling applications such as profile milling, tracer milling, face milling, and plunging.

Mill end: Tool/Step Description This is a flut e diagram. It shows what a t wo flut e, t hree flut e, four flut e, six flut e, and eight flut e mill end looks like from t he bot t om. Then, t he arrows show t hat you want t o go t o t he right when cut t ing a harder mat erial and cut t o t he left t o t ake off more chips. Flute Diagram There are many t ypes of End Mills t o choose from, and wit h each st yle t here are a variet y of mat erials including High-Speed St eel, Cobalt St eel, and Carbide. There are also many opt ions for how many flut es t here are ranging from 2 t o 8 normally. Last ly, for each st yle t here are roughing and finishing end mills.[4] End Mill Type Roughing End Mills: Leave a rough finish but cut much fast er t han t he finishing end mill. It is recommended t o use one of t hese t o st art wit h, and t hen move t o a finishing one.

Roughing End Mill Finishing End Mills: Leave a nice finish on t he st ock you are working wit h. Finishing End Mill Square End Mills: Used for milling a perfect ly square corner at t he bot t om of your channel.[5] Square End Mill Ball End Mills: Machine rounded det ails int o your st ock.[6] Ball End Mill Rounded Edge End Mills: Rounded edges on t he t ips of t he flut es reduce chipping and lengt hen t he life of t he

t ool. Also known as corner radius end mills, t hey work well for making molds. Use on cast iron, cast st eel, and heat -t reat ed st eel. Somet imes called Bull Nose End Mills.[7] Rounded Edge (Bull Nose) End Mill Tapered End Mills: Machine angled slot s in dies and molds. Also known as t aper degree end mills.[8] Tapered End Mill Drilling End Mill: A 90 point angle t urns t hese end mills int o drills for slot t ing, side milling, beveling, and profiling.[9] Drillin End Mill

Chamfer End Mill: Make beveled and angled cut s wit hout t he need for hand deburring. Two flut es provide bet t er chip clearance, while four flut es produce a finer finish.[10] Chamfer End Mill Corner Rounding End Mill: Round off sharp corners on t he edge of your st ock[11] Corner Ronding End Mill Concave Radius End Mill: Machine rounded, out wardcurved edges int o your st ock[12]

Concave Radius End Mill Convex Radius End Mill: Machine hollow, inward-curved edges int o your st ock.[13] Convex Raduis End Mill Cutters:

Various types of mill cutters: Tool/Step Description Used for cut t ing Woodruff keyseat s and ot her precise not ches in shaft s, as well as slot s. St raight -t oot h cut t ers work well on high-carbon st eel and cast iron. Carbide cut t ers are made of premium submicrograin carbide for fast , smoot h cut s. St aggered- keyseat cutter t oot h cut t ers have an alt ernat ing right - and left -hand helix for efficient cut s in mild st eel, aluminum, and brass. [14] Narrow-Widt h Keyseat Cut t ers: Used for cut t ing narrow Woodruff keyseat s. [15] Narrow width keyseat T-Slot Cut t ers: Used for milling T-slot s in machine t ool t ables, indexing t ables, and ot her work holding surfaces and product s. Not e: Before using t he cut t er, mill a slot in t he work surface so t he neck of t he cut t er can ent er t he cut . [16] T-Slot Cutter

Dovet ail Cut t ers: Machine slot s for component s t hat require a sliding fit .[17] Dovetail Cutter Bevel Cut t ers: Make uniform bevel cut s in your st ock.[18] Bevel Cutter V-Slot Cut t ers: A single pass cut s a V-shaped slot . Also known as double-angle milling cut t ers, t hey can also mill not ches, serrat ions, angles, and chamfers.[19] V-slot Cutter St aggered-Toot h milling Cut t ers: Wit h peripheral and side t eet h, cut t ers remove chips for consist ent cut t ing widt h. Cut t ers are for deep slot s and ot her applicat ions

requiring maximum chip clearance. Also known as sidemilling cut t ers, t hey have alt ernat ing right - and left -hand helical t eet h t o remove more met al at higher feeds/speeds t han st raight -t oot h cut t ers. The keyway let s you int erlock t wo or more cut t ers of t he same diamet er so you can cust omize t he t hickness of t he cut t er t o mat ch t he slot widt h you require.[20] Staggered-Toother Milling Cutter St raight -Toot h Milling Cut t ers: Cut t ers are t hinner, have more t eet h, and leave a finer finish t han st aggered-t oot h cut t ers. Use for t hin slot s and plunge cut s. Straight-Tooth Milling Cutter

Large-Diamet er High-Speed St eel Face Milling Cut t ers: Used for facing a piece of st ock. They are also known as shell cut t ers, t hese t ools have a large diamet er for face and side milling.[21] Large-Diameter High-Speed Steel Face Milling Cutters Large-Diamet er Replaceable Carbide-Insert Face Milling Cut t ers: These cut t ers remove met al 2-5 t imes fast er t han comparable high-speed st eel face mills as shown above. All cut t er bodies accept oct agon, round, and square carbide insert s.[22] Large-Diameter Replaceable Carbide-Insert Face Milling Cutter Square Tool Bit Flat -Surface Cut t ers:These are used wit h square t ool bit s for machining flat surfaces. Compared t o st andard end mills, t hey make wider cut s, produce less vibrat ion, cut t hin mat erials easily, and can be run at fast er speeds. [23]

Square tool bit flat This is a Fly Cut t er; Works well t o t ake of mat erial in one pass on a larger surface, t his t ool can be hard on t he machine when working wit h hard met als because of how far away t he cut t er is from t he cent er of t he t ool. Fly Cutter This is a Carbide Face Mill; it does not make as large of cut s as most fly cut t ers, but leaves a very nice finish, and is fast er t o cut wit h. Carbide Face Mill Slit t ing Cut t ers: These cut t ers do not have side t eet h which make t hem a good choice for t hin slit t ing and

slot t ing jobs. They are ground concave for free cut t ing t hrough your st ock. To det ermine how many t eet h your cut t er should have, follow t hese guidelines: 1. Always have at least t hree t eet h in t he cut . 2. Use more t eet h for t hin and hard mat erials. 3. Use fewer t eet h for soft mat erials and larger sect ions. [24] Slitting Cutter Gear Cut t ers: Used t o creat e a gear. Det ermine t he cut t er number you need based on t he number of t eet h in your gear. The cut t er number has t o do wit h t he pit ch of t he cut , and t here are many opt ions.[25] Gear Cutter

Mill cutting speed and feeds Mill Speeds: Tool/Step Description As shown, t he speed increase as t he mat erial becomes soft er.[26] shows speed for materials As shown, t he speed increases as t he t ooling mat erial becomes st ronger.[27] speeds for materials Cutter Material Identification / Selection:

High Speed Steel (HSS) tooling is Shiny in color, and relatively light in weight. Carbide tooling is dull in color and relatively heavy compared to high speed steel. HSS is used for general purpose milling of both ferrous and non-ferrous materials. Carbide provides the user with the ability to run faster with less tool wear

Tool/Step Description Carbide is st iffer (doesn't deflect as much) and is bet t er for hard mat erials but Carbide plat ed t ooling can chip easy, whereas t he more expensive solid Carbide t ooling is more durable.[28] Carbide Cobalt st eel is more resist ant t o heat and abrasion t han high-speed st eel. Uncoat ed end mills are for general milling of alloy st eel, carbon st eel, and cast iron. [29] Colbalt Steel Coat ed end mills last longer and can be run at higher feeds/speeds.[30]

coated end Mill Long-life TiN (t it anium nit ride) coat ing is good for use on alloy st eel, aluminum, and plast ic. Max. working t emperat ure is 1100 F. Color is gold. Titanium Ntiride Ext ra-life TiCN (t it anium carbonit ride) coat ing has bet t er wear resist ance t han TiN coat ing, making it a good choice for t ough-t o-machine mat erials such as duct ile cast iron, st ainless st eel, aluminum, and plast ic. Max. working t emperat ure is 750 F. Color is blue-gray. Titanium Carbonitride

Super-life TiAlN (t it anium aluminum nit ride) coat ing is t he best for very high feeds/speeds and hight emperat ure applicat ions. Use t o mill cast iron, st ainless st eel, nickel-based alloys, and t it anium. Not for use on aluminum. Max. working t emperat ure is 1470 F. Color is purple-gray. titanium aluminum nitride Centercutting and NonCentercutting Endmills Milling tools are either center cutting or non-center cutting. Center cutting mills can plunge straight down into material, while

non-center cutting tools cannot. Notice that the cutting edges of the center cutting end mill continues to the center of the tool. The center of the other has a small hole at the center. Non-center cutting end mills require a pilot hole, ramping or helical motion to plunge into material. the way you can tell the difference is the teeth of some cutters do not go all the way to the center of the end face. References

1. http://www.efunda.com/processes/machini ng/images/mill/end mill types 1.gif 2. http://www.unitedcuttingtool.com/Image/ge ar cutter.jpg 3. http://www.paragonsupply.com/data/Images Additional/endmil ls.jpg 4. http://www.hsmworks.com/docs/cncbook/ en/end mill nose types.png

5. http://www.mcmaster.com/#endmills/ myskma . http://www.mcmaster.com/#endmills/ mysoyc 7. http://www.mcmaster.com/#endmills/ myspa4 . http://www.mcmaster.com/#endmills/ myspt7 9. http://www.mcmaster.com/#endmills/ mysq3o 10. http://www.mcmaster.com/#endmills/ mysqme

11. http://www.mcmaster.com/#endmills/ myss1y 12. http://www.mcmaster.com/#endmills/ mysscs 13. http://www.mcmaster.com/#endmills/ myssnx 14. http://www.mcmaster.com/#standardmilling-cutters/ mys3pw 15. http://www.mcmaster.com/#standardmilling-cutters/ mys6sg 1 . http://www.mcmaster.com/#standardmilling-cutters/ mys77f

17. http://www.mcmaster.com/#standardmilling-cutters/ mys8nq 1 . http://www.mcmaster.com/#standardmilling-cutters/ mys9q9 19. http://www.mcmaster.com/#standardmilling-cutters/ mysajd 20. http://www.mcmaster.com/#standardmilling-cutters/ mysbj7 21. http://www.mcmaster.com/#standardmilling-cutters/ mysc97 22. http://www.mcmaster.com/#standardmilling-cutters/ mysdpm

23. http://www.mcmaster.com/#standardmilling-cutters/ myseut 24. http://www.mcmaster.com/#slittingsaws/ mys1om 25. http://www.mcmaster.com/#gearcutters/ myry0d 2 . http://its.fvtc.edu/machshop2/speeds/rpm calc.htm 27. http://its.fvtc.edu/machshop2/speeds/rpm calc.htm

2 . html 29. images/products/7906-Uncoated.png 30. http://www.endmill.com/images/coated to ols 5.jpg