At Standard Cutting Solutions, we know that an end mill’s lifespan depends on factors like application, material compatibility, and coating—and we’re here to help you get the most out of every tool. Premature wear and tool failure aren’t just frustrating—they disrupt your workflow, ruin finishes, and waste valuable time and material. Knowing what these tools go through is beneficial in diagnosing problems keeping production rolling. 

In the inaugural SCS blog series, we will tackle seven common problems and offer solutions to get the most out of your tools.

 

Blog Post 1.2

Chipping at the Cutting Edge? Here’s What’s Going On.

Another common issue we see in the shop is edge chipping on end mills. This usually pops up when machining gets a little too aggressive—especially with heavy feed rates or deep cuts, whether you’re mid-job or just starting in on a part.

• So what’s causing it?
  If you’re pushing the feed rate too hard or going in with an aggressive depth of cut (DOC), you’re likely stressing the tool more than necessary. Add a bit of tool or setup rigidity issues, and you’ve got a recipe for chipped edges.

 

• The fix? Pretty simple.
  Start by dialing things back. Reducing your overall feed rate—and especially your initial feed when entering the material—can ease the stress on the tool. You can also decrease your axial and/or radial DOC to soften the toolpath and give your end mill a fighting chance.

 

• If rigidity is part of the problem, look at your setup. Try switching to a different tool holder, gripping the shank deeper, or even going with a shorter tool if the application allows. Re-fixturing your workpiece or beefing up your setup can go a long way too. And don’t forget to check your spindle for run-out—it’s one of those sneaky things that can wreck a tool before you even realize it’s happening.

 

Need Help?

Remember, no matter how seasoned a machinist you are, even the best can hit a rough patch. The key is identifying the problem, understanding what’s causing it, and applying the right fix. At Standard Cutting Solutions, we’re passionate about partnering with you to solve these problems with American-made tools, expert advice, and personalized service. Reach out anytime!

 

 

 

 

 

 

 

 

 

 

 

 

 

SCS President Richard Thiele performing inspection and quality control 

 

 

 

 

 

 

References

Harvey Performance Company. (2022, February 4.). End mill troubleshooting guide. Harvey Performance. https://www.harveyperformance.com/in-the-loupe/end-mill-troubleshooting-guide/