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PRI 2017 Show Highlights

3/13/2018

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by Bernard Martin

At the 2017 Performance Racing Industry show held in Indianapolis,IN we where very excited to tool up the new Centroid A590 Engine Shop CNC Machine. Our end mills where also used in the Palmgren booth on a manual milling machine and we met some great customers and exhibitors at the show who told us about their experiences using Destiny end mills.  Theres a complete video below of many of the highlights from the show.
We where able to connect with the folks from Centroid in Howard, PA to provide some tooling for their new Centroid A590 Engine Show CNC Machine.

A complete turn-key system, the A590 Machining Center overcomes many limitations of other cnc porting machines with its unique and patented technology. With Centorid's advanced technology you can machine cylinder heads and engine blocks to incredible tolerances while maintaining amazing surface finishes all with one machine.

Centroid's CNC articulating head was designed specifically for CNC Cylinder head porting. Made in the USA of rigid cast iron the A590’s B axis rotates 90 degrees in each direction for a full 180 degrees of movement of the tilting B axis spindle head/
PRI 2017 Destiny Tool
Video Highlights:
  • ​Check out our interview with Mike Stevens from Centroid talking about the new A590 using a 5/8" diameter Destiny Tool Diamond Back at 11,000 RPM, 240 IPM, .060" radial, and .500" axial.
  • Jeremy Harshman, at 17 year old high school senior updated us on what he's been doing since we met him last year at PRI when his father bought him his first CNC Mill. He shows us an intake elbow for a Terminator Mustang all made with Destiny End mills. You can following him on instagram @motivperformanceengineering
  • Rob Stock was kind enough to send us some of his parts made with Destiny End Mills for display inner booth. You can check him out on instagram @stock_design
  • Dean visited us lat year at PRI and was just getting his new Haas VF5 CNC milling machine. He updates us on what he's been up to in the past 12 months since we last met and they finishes he getting with our end mills.
  • There a close up up hyperlaspse in the video of the Destiny Raptor 3/6 end mills for those who have been asking for that 360 degree view.
  • Alec Darling from J Squared swung by our booth. J Squared had their own booth just down the aisle from us. Alec overheard some of our conversation and made some great comments that we just had to get him on video saying. J Squared started 35 years ago and made quite a name for themselves by manufacturing high-quality, affordable tubing benders and notchers  and now plasma cutting tables. You can follow them on instagram @jsquaredinc
  • The Pitt SAE Race team who we sponsor was kind enough to assist us in the booth for set up and break down. You can follow Panther Racing @PittFSAE

The Centroid A590 5- Axis Engine Shop CNC

  • Table Size: 23.6” x 66.9” (600mm x 1700mm)
  • Longitudinal travel (X): 59” (1498mm)
  • Cross travel (Y): 27” (685mm)
  • Vertical travel (Z): 36” (914mm)
  • A axis: 360 degree rotation
  • B axis: 180 degrees of motion, +/- 90 degrees of tilt
  • Maximum table load: 2425lbs (1100kg)
  • Spindle power: 27HP/ 20kW, (40 HP / 30kW *optional)
  • Spindle taper: CAT40
  • Spindle speed: 20,000 RPM (27 HP), (16,000 RPM 40 HP *optional)
  • ATC 24 Position Swing Arm tool changer, (40 Tool *optional)
  • Rapid feed rates (X,Y,Z): X,Y 1000 IPM, Z 800 IPM
  • Accuracy: 0.0005" (0.0127mm)
  • Repeatability: 0.0002" (0.0060mm)
  • Axis drive motors (X,Y,Z,A,B): X,Y 2.9kW, Z 4.5kW, A, B 1.8kW AC Brushless
Centroid A590 5- Axis Engine Shop CNC
Centroid A590 5-Axis Engine Shop CNC
A new level of 5-axis CNC machining performance and price point is found in the Centroid A590 5-axis machining center. Weighing in at 23,000 lbs the new A590 combines quickness and accuracy with a large work table, high material removal rates and heavy part weight capacities with an easy to use operator CNC control interface with the latest CNC software. As the name implies the A590’s B axis rotates 90 degrees in each direction for a full 180 degrees of movement of the tilting B axis spindle head. The A590 accommodates work-pieces up to 26.5” in diameter and 46” long with a weight of up to 2425 lbs.

Destiny End Mills used on the Demonstration

​The Centroid CNC Milling machine carousel was loaded with the following Destiny Tool End Mills:
  • DR33232R030S 1/2 Diamond Back 2" Length of Cut 3 Flute Rougher
  • DR34836R030S 3/4 Diamond Back 2 1/4" Length of Cut 3 Flute Rougher
  • DR3481640R030S 3/4 Diamond Back Long Shank Series with Reduced Neck, LBS*, Radius
  • BDR2321227S 1/2 Diamond Back Ball, 2 Flute, Roughers Long Shank Series with Reduced Neck, LBS*
  • BDR2401227S 5/8 Diamond Back Ball, 2 Flute, Roughers Long Shank Series with Reduced Neck, LBS*
  • V24864S 3/4 Viper Square End 4" Length of Cut, 2 Flute, 45 Degree Helix
  • V23240S 1/2 Viper Square End 2 1/2" Length of Cut, 2 Flute, 45 Degree Helix
  • BV24826S 3/4 Viper Ball 1 5/8" Length of Cut, 2 Flute, 45 Degree Helix​
Centroid Carousel Destiny End Mills
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Autodesk HSM Throws Down the Gauntlet to Destiny Tool

2/14/2018

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by Bernard Martin

Angelo: "We want to test out your tools on some new adaptive clearing software we're developing and see how it works at the true cutting limits."

Bernie: "Ok, So we get to try to break your software and you get to try and break our end mills!
​Cool!"
Bernard Martin Autodesk Adaptive Clearing
Bernard Martin visits Autodesk At Pier 9
We visited with Angelo Juras and CJ Abraham at Autodesk on Pier 9 in San Francisco in late January.  Angelo had talked to us at the PRI Show about paying him a visit because he really wanted to run some of our end mills after following us for quite a while on instagram. 

Angelo and CJ work on the advanced development of Autodesk HSM with a current focus on adaptive clearing. Take a look at our video below and check back often as we'll continue to update this post with some test results! 

Oh!, And don't forget to give Angelo a follow on IG @the_true_croatian_sensation, CJ @cj.abraham and, of course, @autodesk ...so you can follow the progress of them pushing the limits of our end mills.

About Autodesk HSM

HSM is The Fully Integrated CAM Solution from Autodesk. CNC Programming right within Inventor, SOLIDWORKS and Fusion 360.

February 27 update from Angelo...

We just got an updates on the testing progress... take a look see! 

Raining chips. Fusion CAM Team Testing both ways Adaptive at Pier 9 with a DestinyTool Diamond Back 0.750 dia, 3 flute, 12,000RPM, 1.6” DOC, 0.140” Radial, 750ipm. We appreciate our partners for the tooling and workholding. #autodeskcam #fusion360 #adskfusion360 #inventorhsm #hsmworks #instamachinist @destinytool #haas_automation @langtechnik @langtechnovationco @5thaxis @selwaymachinetool (video credit: Lee Krasnow @pacificpuzzleworks)

A post shared by Angelo Juras (@the_true_croatian_sensation) on Feb 27, 2018 at 8:53am PST

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Our Interview with Andrew Henry at Henry Holsters

6/30/2017

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A former music teacher, Andrew started Henry Holsters in Indiana in 2008, Henry Holsters are thermoformed plastic holsters that combine careful design work with robust materials and painstaking attention to detail.

They make their holster out of Boltaron 4332 sheet material for all their holsters, as they prefer the workability and feel of Boltaron over Kydex.

Most importantly, they use Destiny Tool end mills to make their top-of-the-line holsters!  Andrew started following us with his instagram account a few years ago and we've been following his progress right back. 

Their shop uses state of the art Brother CNC milling machines and vacuum forming machines to produce holster shells which are then hand finished and assembled.

​We visited Andrew at his shop earlier this month and got to spend some time with this fully self taught machinist and manufacturing innovator. Give Andrew a follow on instagram! He posts some rather nice instructive videos there: @henryholsters
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EASTEC 2017 END MILL PROMOTION

5/12/2017

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Whether you can make it to the EASTEC 2017 show or not you can still take advantage of this unique "Buy 'Em & Try 'Em" promotion from Destiny Tool!
Here's your opportunity to give the #destinytool end mills you keep seeing on Instagram a try!  

Please contact you local distributor or talk to one of our regional managers to take advantage of these great deals!

​Just CLICK ON THE MAP for their contact info.

If you are coming to EASTEC 2017, be sure to stop by our
Destiny Tool booth 5667.
DOWNLOAD A PRINTABLE VERSION OF THE FLYER HERE:
destiny_tool_end_mill_kit_promo_2017.pdf
File Size: 10045 kb
File Type: pdf
Download File
Destiny Tool End MIll Kit Promo 2017
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Understanding Transverse Rupture Strength (TRS)

3/15/2017

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by Bernard Martin, Managing Director Sales & Marketing, Destiny Tool
For anyone who has been using carbide end mills for a while you have undoubtedly heard the term "Transverse Rupture Strength" or "TRS." Transverse rupture strength (TRS) or "bending strength" testing is the simplest and most common way of determining the mechanical strength of carbide end mills. 

Transverse rupture strength (TRS) also known as "modulus of rupture", "bend strength", or "flexural strength". It's a material property, defined as the stress in a material just before it yields in a TRS test.  Simply put, It's the point just before it breaks and shatters.  If you have every had an end mill break in half, you have exceeded the TRS value.
When an carbide end mill is "bent" (Fig. 1), it experiences a range of stresses across its depth (Fig. 2). At the edge of the object on the inside of the bend, B,  (concave face) the stress will be at its maximum compressive stress value.

At the outside of the bend, A, (convex face) the stress will be at its maximum tensile value. These inner and outer edges of the carbide rod are known as the 'extreme fibers'.

​Most materials fail under tensile stress before they fail under compressive stress. If you break a pencil in half it doesn't crack close to you but awn from you. The maximum tensile stress value that can be sustained before the rod fails is the transverse rupture strength (TRS) of a given grade of carbide rod.
Transverse rupture strength (TRS)
Fig. 1 - Beam of material under bending. Extreme fibers at B (compression) and A (tension)
Stress distribution across beam
Fig. 2 - Stress distribution across beam
Destiny Tool Transverse Rupture Strength
Longer endmills shoud have a higher TRS value
The Standard method of measuring TRS is with a square material sample, as shown in Fig 1, of a given length and supported at both ends with a force, the yellow arrow above, exerted on the bar stock.  It's done according to the standardized method EN 23 327 (ISO 3327):

"a specimen of a specified length with a chamfered, rectangular cross section is placed on two supports and loaded centrally until fracture occurs. TRS is taken as the median of several observed values." 

The carbide rotary toolmaking sector has adopted a modified TRS testing method that is more applicable to the geometry of solid carbide rods. In this test a modification of the standard test specimen according to EN 23 327 (ISO 3327) is used.

This test comprises a cylindrical carbide specimen, Ø 3.25 x 38 mm. This modified test has been adopted as an industry standard and is now proposed to be included in the ISO standard.

By using this cylindrical test specimen, as used to make carbide rotary end mills, the edge effect of the rectangular standard specimen is avoided.

​NOTE: Higher TRS values increase the TOUGHNESS  of the tool: it will "bend" a bit more before catastrophic failure, but you sacrifice WEAR RESISTANCE when you increase toughness.  More on that below...

Why TRS is important

Take a look at the picture of the two end mills in the above section. If you are using a longer overall length (OAL) end mill, the longer tool will be more prone deflection when it's in-the-cut and under load.

It's essentially the same effect if you try to push too hard on the head of a pencil point.  If you apply too much pressure, it will eventually break and lead to catastrophic failure of the tool.  Ideally, the longer the reach of the tool the higher your would prefer the TRS value.

It's important to keep in mind that it's really about a carbide rod length to diameter ratio, The longer the overall length of the tool, when compared to cutting diameter, the more important the TRS becomes.

Because of this, the TRS value is also very important to understand when using miniature end mills. Higher TRS values enable you to take a heavier cut (chip load per tooth) without catastrophic failure of the tool.
Destiny Tool Miniature end mill
TRS values are more critical with longer length to cutting diameter ratios.

How you increase the Transverse Rupture Strength

Carbide end mills are a form of powdered metal.  In simple terms, Carbide rod is created by mixing Tungsten Carbide powder (WC) with a binder, Cobalt (Co). It is extruded into a carbide rod and then, under heat and pressure, sintered into end mill rod stock.  By increasing the cobalt content, you will increase the TRS value and "toughness" of the tool. e.g. it will 'bend" more, but it will also dramatically reduce the wear resistance of the carbide. Cobalt is just not as wear resistant as carbide.  That's why cobalt end mills wear out quicker than carbide end mills.

The TRS reaches a maximum at cobalt content of about 15% (by weight) and a medium to coarse Tungsten Carbide WC grain size. Typically, the cobalt content of an end mill ranges between 8-12% (by weight) of the carbide in most end mills.  

It's important to know that the cobalt content of a carbide end mill is measure by weight and NOT volume.  

Think about mixing up a cake.  You pour your milk into a measuring cup based upon the VOLUME of milk you need.  In contrast, when mixing carbide rod, you MEASURE THE WEIGHT of the carbide and the WEIGHT of the cobalt on scale for the proper mix. 

Carbide weighs A LOT more than Cobalt!  To see this for yourself hold a cobalt end mill in one hand and a carbide end mill in the other.  Because Cobalt weighs much less than Carbide it takes up MORE VOLUME: It's a bigger pile as you increase the percentage of cobalt.

It bears repeating, Carbide substrate is measured by weight.

If you where to measure the VOLUME of the cobalt in a 12% Cobalt  (by weight) carbide end mill, that volume may be as high as 24-28% (depending on the grain size of the carbide). That's the reason for the reduced wear resistance of the higher cobalt content but also the reason that those end mills have a higher TRS value and greater "toughness"

For a much more detailed breakdown of carbide substrates and how carbide is made please take a look at our technical section at this link: CARBIDE SUBSTRATE.
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#Instamachinist RePosts: The Video Highlights Reels

12/2/2016

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If you've been following @DestinyTool on Instagram you already know that the #DestinyTool hashtag is very busy with over 1750 posts!  

We've been reposting some video's and images that have cutting data for quite some time now to help you understand how other machine shops are running our tools.  We've compiled some of them here in one post so you can click through the videos.  We hope they put you in the holiday spirit!

Something Scary Cool and Scary Fast for #happyhalloween □ Via @avantmfg with @repostapp ・・・ Roughing the top without coolant for viewing pleasure =) #instamachinist #cncmilling #cncmill #machineporn #manufacturing

A video posted by Destiny Tool (@destinytool) on Oct 31, 2016 at 3:28pm PDT

Flashback Friday to #IMTS. You can check out THIS part at the #PRIshow in December!! #Repost @matsuurausa with @repostapp ・・・ Check out the Matsuura MX-850 in action. Shared by @tcb1228: "Some leftovers from prepping for #IMTS2016 this was a scaled up Ford 9" a customer of ours makes in Denver-these end up in the back of a pro stock drag car. I scaled up a little bigger and reprogrammed Thanks again for tooling me up @destinytool #Matsuura #MX850 #destinytool #bigkaiser #instamachinist #doyoueven5axisbro #5axis #MatsuuraUSA #Matsuura #instamachinist

A video posted by Destiny Tool (@destinytool) on Nov 11, 2016 at 12:12pm PST

Making us smile on a Thursday #mfg afternoon via @jcmfginc with @repostapp ・・・ So far so good □ #jcmfginc #instamachinist #haasautomation #fusion360 #fusion360 #destinytool #raptor #adaptiveclearing #thursday @destinytool

A video posted by Destiny Tool (@destinytool) on Oct 20, 2016 at 11:59am PDT

What can YOU do with a #DestinyTool? #Repost @memachine_co with @repostapp ・・・ 3.5 x 11.5 x 22.5 Big A$$ Aluminum □. Out of curiosity, what would you guys roughly quote this for? Thank you @destinytool for making one helluva a tool! #instamachinist #cncmachining #machinistlife

A video posted by Destiny Tool (@destinytool) on Oct 13, 2016 at 8:14am PDT

Making us smile on a Thursday #mfg afternoon via @jcmfginc with @repostapp ・・・ So far so good □ #jcmfginc #instamachinist #haasautomation #fusion360 #fusion360 #destinytool #raptor #adaptiveclearing #thursday @destinytool

A video posted by Destiny Tool (@destinytool) on Oct 20, 2016 at 11:59am PDT

Quadruple your production today & get over the hump! Via @jlotuaco with @repostapp ・・・ Oh, one more thing...I also quadrupled my productivity today. Took me awhile, but FINALLY got my code and setup reliable enough where I can trust running 4 parts at a time. Still need to timelapse it to make it look as fast as a normal CNC lol. @destinytool Viper em making the final contours on the flat surfaces absolutely perfect. #instamachinist #machinistlife #cncmachining #cncmilling

A video posted by Destiny Tool (@destinytool) on Oct 12, 2016 at 7:28am PDT

Hope you are cutting up some Turkey today! Have a great #Thanksgiving #instamachinist friends!! #Repost via @kalpay ・・・ 1/2" @destinytool Diamondback rougher removing aluminum in a hurry. I'm sure I could push it much harder, and I probably will play with it tomorrow, but what's amazing is the @miteebite talon jaws are only holding a .09" thick carrier on this 3.5" x 4" plate.

A video posted by Destiny Tool (@destinytool) on Nov 24, 2016 at 9:51am PST

Let's get Monday underway!! #instamachinist via @liberty_precision_rifles ・・・ 3/8" stealth coated @destinytool viper at 6000 rpm, 108 ipm, .1125" radial cut, .563" axial cut in 6061 aluminum is just about maxing out my little 7.5hp motor on the @haas_automation TM-2P. Thats about 6.8 cubic inches a minute, and i know i could push is harder! Great end mill!!

A video posted by Destiny Tool (@destinytool) on Nov 28, 2016 at 6:28am PST

It's all about chip control. #instamachinist #machinistlife #cncmachining #cncporn #Repost @argomez2015 with @repostapp ・・・ #destinytool

A video posted by Destiny Tool (@destinytool) on Sep 29, 2016 at 9:05am PDT

The last day of #IMTS has officially opened! Time to kick up your speed! #IMTS2016 #Repost @bmp1785 with @repostapp ・・・ 1/4" Viper from @destinytool in a #SK16 from @maritoolusa removing material with the @adskfusion360 Adaptive clearing ( 80% stay down ) 10K/150ipm .125" Radial .220" Axial #Autodesk #Fusion360 #Haas #VM2 #Destinytool #Maritool

A video posted by Destiny Tool (@destinytool) on Sep 17, 2016 at 7:10am PDT

Today's the day we finish up #IMTS! We hope all of our #instamachinist friends polished up some new ideas from the #IMTS2016 show! Video via @criticalmfg with @repostapp ・・・ Well not at imts but @destinytool in shrinkfit holder is still working... still going strong and won't break.... #cnc #cncporn #instamachinist #haas #tactical #shoplife #imatwork #igmilitia #gun #guns #gunporn #cncmachined #haas #tacticalgear #billeteverything

A video posted by Destiny Tool (@destinytool) on Sep 17, 2016 at 5:39am PDT

We leave you with this music and wish you sweet #IMTS dreams tonight. See ya in the AM #Repost via @atley_wagner with @repostapp ・・・ 183ipm .843 deep .225 step over 10k rpm...#destiny 3 flute viper of course □□ #atleywho #instamachinist #haas #haasautomation #mitutoyo #destinytool #toolporn

A video posted by Destiny Tool (@destinytool) on Sep 16, 2016 at 9:01pm PDT
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Diamond Back End Mill 3+2 roughing on a Matsuura MX850 at IMTS 2016 

11/28/2016

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All the tools running on the Matsuura MX850 5 axis VMC at the IMTS 2016 show where using Destiny Tool End Mills.
We stopped over to check on the tools during the show and spend some time with Tyler Bonde who tooled up the entire job.  

Tyler has been following us on Instagram for a while and he reached out to us to help show off the capabilities on the Matsuura MX850 5 axis VMC during the IMTS 2016 show. Give him a follow @tcb1228 on Instagram!

In the video, Tyler explains how he is using the Diamondback rougher that not only cuts down his cycle time, when compared to insert style end mills, but also how the tools generate a manageable chip size that doesn't clog op his chip augers.  We're planning on showing off the finished part at the PRI Trade Show (Performance Racing Industry) in December 2016.
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Tyler Bonde at the Matsuura IMTS 2016 booth
Check out the video and be sure to give @matsuurausa a follow on Instagram!
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IMTS 2016: Byce Workholding Vise is made with Destiny Diamondback & Viper!

9/21/2016

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"Diamondback ran for 6 weeks and still feels sharp!"
Picture
Brent Biestel from Byce Tool, introduced his new double station vise at the IMTS 2016 show at the Doosan booth.
​We met Brent at D&L Industrial Supply's Open House this past summer and told him about the Viper's and Diamondbacks. Later we found him on Instagram (@bycetoolworkholding) and it turns then found out out he started using Destiny End Mills to make his new workholding vise!

According to Brent, he's using a 5/8" Diamondback to remove roughly 20 CIM of material every 1/2 hour and the Diamondback has been running for 6 weeks in the cut!!! ...and it's still running.  Brent is also running Viper End Mills to make the aluminum jaws.  

Brent goes on to tell us about his new vise and many new features that's he's come up with. Check out the video below more.

We're planning on visiting Brent to get more video of our tools in the future so stay tuned for more video!
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The 4" Quad Station Byce Tool Vise

About the Byce Tool Workholding Vise

Picture
Reversible knuckle and 4 way jaw
  • Double Station Vise.
  • Available in 4" & 6" laydown and tombstone versions.
  • Available as a quad station laydown version - single body, 4 stations!
  • Use all 4 sides of machinable jaws.
  • Large machinable area of all 3 jaws compared to anything else on the market.
  • Quick Change attachments for knuckle easily replaceable.
  • ID and OD clamping just by reversing the knuckle.
  • Ability to use all 4 sides on the center jaw.
  • Various heights of jaws available
  • Lead screw completely sealed form coolant and chips
  • 400 series THROUGH hardened stainless steel ways!
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Call for Parts: Feature YOUR Shop in OUR booth at IMTS 2016

7/7/2016

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Picture
The International Manufacturing Technology Show is one of the largest industrial trade shows in the world, featuring more than 2,000 exhibiting companies and 114,147 registrants. The event is held every two years in September at McCormick Place, Chicago. The 2016 Show runs from September 12 - 17.

Destiny Tool will be in Booth W-2092 which is located in the Tooling and Workholding Pavilion in the West Building of McCormick Place for IMTS 2016.

We've been reposting and sharing both Instagram postings and YouTube videos of your applications for some time and for IMTS 2016 we want to take it one step farther. For the 2016 IMTS show we would like to showcase the parts that you have made with our tools.  

From now until August 31, we will be accepting applications from shops to be part of our display at IMTS 2016.  We will feature a part made with our tools as well as an informational table tent that would include your shop's logo, City, State and/or Country as well as your website address so other attendees can take a look at your capabilities.  We would also need some specific cutting data as to which tools were used and how.  

​In the meantime, please be sure to use the #DestinyTool hashtag as well as the #IwannaBeOnIMTStv hashtag when posting our products.  The folks at IMTS 2016 have a competition going on to see where the most interesting products are located at the show and then do an interview in the booths that qualify.  This could be a great opportunity for us to talk about YOUR company and part applications! 

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End-mill tool with high and low helical flutes and related method for rough cutting and finishing a workpiece

5/10/2016

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We've been asked to explain what exactly is a Double Variable Helix many many times.  Basically, the helix angle of an individual flute changes from a low helix to a high helix and in some cases to a super high helix as you follow the helix line up and individual flute.  In addition to that each flute has an incrementally different start which we define as a double variable helix or DVH.  Below is some detail on one of the patents of the DVH.
​BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
In general, the present invention relates to machining of a workpiece, More particularly, the present invention relates to end-mill tools for milling a workpiece and a related method.
Picture
2. Background of the Invention
Rotary cutting end-mill tools are used for various machining operations on workpieces. Such machine operations are generically referred to as milling operations and include the forming of slots, keyways, pockets, and the like. Several considerations related to end-mill tool design include time for completing a machining operation, amount of material removed in a cut, quality of the cut, and wear on the tool itself during the milling operation.
​
The various machining operations performed with an end-mill tool can be performed in a “roughing” mode (rough cutting) and a “finishing” mode (finishing cutting). During roughing, material is removed from a workpiece at a relatively high rate (e.g., depth of cut), but with a relatively rough surface finish. Finishing involves the removal of material from a workpiece at a relatively low rate, but with a relatively smooth surface finish. Generally, these two operations (roughing and finishing) are antithetical to one another, and require two operations with two different end-mills.

End-mill tools are formed from materials such as tungsten carbide, high speed steel, ceramic, and other advanced materials and coatings and typically include a “shank” portion, a “body” portion and a “point”. The shank portion is located towards one end of the end-mill tool and is generally cylindrical (but may be tapered) for engagement by a spindle of a milling machine. In use, the milling machine rotatably drives the end-mill tool about its longitudinal axis. The body portion of the end-mill tool is located between the shank and the point. The point is formed at an opposite end of the tool from the shank portion, and typically includes one or more cutting edges.

To manufacture an end-mill tool, a grinder is typically used to grind a flute face and a corresponding cutting edge on the body of the end-mill tool. The grind (grinding operation) typically starts from a position adjacent an end of the body portion and continues to a point at or near the interface of the body portion and the shank portion, commonly referred to as an “inception location”. The grind forms a desired helical flute face and/or helical cutting edge. Prior art end-mills typically have continuous helical flutes with continuous cutting edges helically extending from the inception location to the point (or vice-versa). The flutes function primarily for chip removal, in a manner similar to the helical flutes found on an ordinary drill bit.

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Destiny Tool
18434 Technology Dr.
​Morgan Hill, CA 95037
US TF: 800.527.8665  
Tel: 408.988.8898    
​Fax: 408.988.2606
info@destinytool.com

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 WARNING: These products contain Cobalt, a chemical known to the State of California to cause cancer. ​For more information go to www.P65Warnings.ca.gov
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