{"id":2350,"date":"2017-05-30T11:00:50","date_gmt":"2017-05-30T16:00:50","guid":{"rendered":"http:\/\/blog.misumiusa.com\/?p=2350"},"modified":"2021-10-29T15:59:21","modified_gmt":"2021-10-29T20:59:21","slug":"the-end-of-all-mills","status":"publish","type":"post","link":"https:\/\/blog.misumiusa.com\/the-end-of-all-mills\/","title":{"rendered":"The End Of All Mills"},"content":{"rendered":"

In the MRO (Maintenance, Repair, and Operations) world, replacement parts are key for production lines and machines.\u00a0 They oversee keeping things running with little down time and in the most efficient manner.\u00a0 One such piece of the machine puzzle are\u00a0end mills<\/a>. \u00a0This small part is crucial in many machines for creating or modifying custom parts.\u00a0 It is the piece that cuts your workpiece to your specifications and using the correct one is key. \u00a0It is the contact piece at the end of your machine with the workpiece.<\/p>\n

End Mills are a cutting tool used in many machines including, milling and turning machines. \u00a0They are used for drilling, reaming, slotting, contouring, and profiling as well. \u00a0Their physical appearance is commonly confused with a drill bit but they are different in many ways.\u00a0\u00a0 While drill bits cut in one direction, axially only, end mills can cut in multiple directions.\u00a0 This comes in handy with precision cutting and the variety of cutting methods mention previously. \u00a0Keyway shapes are produced using end mills as well as many other custom shapes.\u00a0 Drill bits simply cut cylindrical holes.<\/p>\n

\"\"<\/a>
Drill Bits Image from DIY Network<\/figcaption><\/figure>\n

The shape and cut of the end mill are what allows for the ability to cut both axially and laterally.\u00a0 Roughing end mills are designed with serrated cutting edges.\u00a0 This produces fine chips and reduces vibration while machining.\u00a0 They provide a rough surface finish to the work piece.\u00a0 Carbide end mills<\/a> are designed to be rigid and withstand high heat.\u00a0 High-speed steel<\/a> is as the name suggests for high-speed cutting applications and provides good wear resistance.<\/p>\n

\"\"
Roughing End Mill serrated edges<\/figcaption><\/figure>\n

The grove between teeth that is shaped helically along the mill is called the flute.\u00a0 The number of flutes will determine how smooth the finish will be as well as chip clearing.\u00a0 It is important that chips clear to not create build up on the mill and overheat the tool. \u00a0Overheating will cause the mill to wear prematurely.\u00a0 2 and 4 flutes are most common and produce full chip lengths to prevent this aforementioned build up.\u00a0 The basic concept here is more flutes make a smoother finish while fewer flutes make rougher cuts.<\/p>\n

 <\/p>\n

\"\"<\/a>
2-Flute End Mill<\/figcaption><\/figure>\n
\"\"<\/a>
4-Flute End Mill<\/figcaption><\/figure>\n

Helix angles also play an important role in the shape of your end mill. Ranging from 15 degrees to 60 degrees the helix angle will determine the amount of shearing action in the cut.\u00a0 The higher the angle the cooler it stays, the higher angles can be used for softer materials where rigidity is not an issue.\u00a0 Helix angles also reduce chatter during cutting.<\/p>\n

MISUMI<\/a> carries carbide end mills with different end shapes.\u00a0 One is called radius end, this shape is used for tool strength while cutting.\u00a0 Radius end also reduces wear if the mill cut were a sharp corner.\u00a0 Another is ball end mills or ball nose mills which produce rounded details to the workpiece such as a bearing groove.\u00a0 Square end mills for square and sharp edges.\u00a0 Tapered end mills for machining deep grooves, engraving.\u00a0 These shapes are also available in HSS (High-Speed Steel) material.\u00a0 As per our configurability model, the length can also be chosen up to 1mm increments.\u00a0 MISUMI<\/a> also carries customizable end mills<\/a>. Available in ball end, radius, V-groove and carbide blanks.<\/p>\n

\"\"
Some examples of end mill shape cuts.<\/figcaption><\/figure>\n

Every workpiece does not come in the same material, size, or shape nor are they going to be cut in the same manner in regards to feed rate. \u00a0This is why end mills must have coating options.\u00a0 Some coating is applicable to the speed in which the piece is cut others are for the non-conductive features. \u00a0TiAIN: Titanium Aluminum Nitride is best for high-temperature cuts. \u00a0TiN: Titanium Nitride is also great for heat resistance and provides the end mill with hardness for durability to run at higher speeds. \u00a0TiCN: Titanium Carbonitride is one step up from TiN giving the end mill more hardness and can run at twice as much speed as TiN. AlCrN: Aluminum Chromium Nitride for non-conductive materials.<\/p>\n

Here is a chart showing the various coatings MISUMI<\/a> has for end mills<\/a>.<\/p>\n

\"\"<\/p>\n

 <\/p>\n

At these links below you will find MISUMI<\/a> cutting recommendations for MISUMI End Mills<\/a>.<\/p>\n

Carbide End Mill<\/a><\/p>\n

High-Speed Steel End Mill<\/a><\/p>\n

Straight Blade End Mills<\/a><\/p>\n

Overall, when choosing your end mill there are many factors to consider. \u00a0Shorter length end mills provide more rigidity. \u00a0For higher speeds and life, add a coating. \u00a0More flutes generate a cleaner and finished work-piece. \u00a0Once you find your perfect end mill, it will be the end of all other mills! \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"

In the MRO (Maintenance, Repair, and Operations) world, replacement parts are key for production lines and machines.\u00a0 They oversee keeping things running with little down time and in the most efficient manner.\u00a0 One such piece of the machine puzzle are\u00a0end mills. \u00a0This small part is crucial in many machines for creating or modifying custom parts.\u00a0 It is the piece that […]<\/p>\n","protected":false},"author":46,"featured_media":2359,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1136],"tags":[441,432,443,437,445,438,433,444,434,442,436,435,440,439],"class_list":["post-2350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mechanical-design","tag-ball-end","tag-end-mills","tag-engraving","tag-flute","tag-grooves","tag-helix","tag-machine","tag-milling","tag-mro","tag-radius-end","tag-repair","tag-replacement","tag-square-end","tag-tapered"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t