• MMS Youtube
  • MMS Facebook
  • MMS Linkedin
  • MMS Twitter
5/14/2019 | 1 MINUTE READ

Sandvik Coromant's CoroMill 390 Reduces Vibration with Optimized Cutter Body Design

Originally titled 'Additively Manufactured Tool Reduces Vibration for Long-Overhangs'
Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Sandvik Coromant’s CoroMill 390 features an additively manufactured cutter body for lighter overall weight, which reduces vibration and increases rigidity when machining when long overhangs are required.

Share

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Sandvik Coromant’s CoroMill 390 features an additively manufactured cutter body for lighter overall weight, which reduces vibration and increases rigidity when machining when long overhangs are required.

”When designing our new lightweight CoroMill 390, material was tactically removed to create the optimal cutter design for minimizing mass,” explains Thomas Wikgren, manager of product application. “This is called topological optimization, and it makes the cutter more compact and significantly lighter than a conventional version, thus helping machine shops to boost the productivity of their long-overhang milling operations. Moreover, a shorter distance between the damper in the adapter and the cutting edge improves performance and process security.”

The company explains that process security is paramount when milling with long overhangs, which is a common requirement in the manufacture of aerospace and oil and gas components. In such cases, vibration can compromise the generation of features such as deep cavities, leading to slower production, shorter tool life and poor surface finish. The lightweight CoroMill 390 is intended to provide a solution to this issue. The tool can be combined with the company’s Silent Tools milling adapter to damp vibration.

The CoroMill 390 can perform long-reach face milling, deep shoulder and side milling, cavity milling, and slot milling. The tool is available in diameters of 40 mm (arbor 16 coupling) and 50 mm (arbor 22 coupling). Three or four inserts (size 11) can be specified to suit the application. Differential pitch and internal coolant are provided on all cutters.

RELATED CONTENT

  • Start With The Right Speeds And Feeds

    Running rotary milling cutters at the proper speeds and feeds is critical to obtaining long tool life and superior results, and a good place to start is with the manufacturer's recommendations. These formulas and tips provide useful guidelines.

  • Successful Application Of Ceramic Inserts

    Applying ceramic inserts is not a simple substitution of one cutting tool material for another. There are significant process considerations that shops should examine carefully in order to realize performance and tool life expectations from ceramic inserts. Here's a look at some of the ways they are used.

  • How To Machine Aircraft Titanium: The 8-To-1 Rule For Finishing Walls And Ribs

    Part of a series of articles on more efficient machining of pockets in titanium parts, this article makes the case for a tool with many cutting edges, and describes how best to apply it.

Resources