12/17/2012 | 1 MINUTE READ

Put Shrink-Fit Tooling to the Test

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

Metalworking offers its fair share of challenges, and shrink-fit tooling is one of them.

Share

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

Related Suppliers

Metalworking offers its fair share of challenges, and shrink-fit tooling is one of them. However, using this method of toolholding instead of collet chucks could be the most efficient for your shop.
Shrink-fit tooling uses heat to expand a slightly undersize toolholder’s inner diameter to accept an oversize cutting tool. Contraction from cooling the holder then secures the grip on the cutting tool. The holder is reheated in order to remove the tool.
Shrink-fitting is performed offline using a shrink-fit machine that incorporates either an induction heating device or hot air to heat the toolholder.
You might wonder if having a special machine to create this toolholder is worth the investment. According to the results of a Techniks tool trial, the advantages of using shrink-fit toolholders outweigh using ER collet chucks. The company found that using shrink-fit toolholders increases tool life and improves surface finish and cutting ability. Less wear and tear on the toolholder shank and spindle bearings is another advantage to using shrink-fit toolholders.
Learn more about the shrink-fit process by reading a case history by Production Machining on the topic, called New Equipment Gives Students a Learning Boost. Read Horizontal Shrink-Fit Machine for Micromachining Applications to learn about a specialized shrink-fit machine. For further reading, check out Cool Shrink Fit System  and Hot Air Actuates Shrink Fit Tooling.
Do you have a burning technical question about metalworking you would like to see answered by me? Please let me know by sending me an email.

  

RELATED CONTENT

  • Tooling up for Micromachining

    Choosing the right tools and matching them to the correct operations and process techniques for micromachining applications is critical to success in this burgeoning market.

  • Shop Sticks With Stick Tooling

    Who says we can’t be competitive on simple parts? The secret for making it happen at one Connecticut shop is the combination of modern CNC Swiss-type machines and good old-fashioned “stick” tooling.

  • Flexible, Quick-Change Tool Adapter System

    Before the development of live tooling, there were turning centers and machining centers. Processing parts with multiple operations that included turning and milling required moving the workpieces from one machine tool to another.


Resources