As a guest user you are not logged in or recognized by your IP address. You have
access to the Front Matter, Abstracts, Author Index, Subject Index and the full
text of Open Access publications.
A polycrystalline diamond (PCD) ball end mill is effective for processing molds made of hard and brittle materials, such as cemented carbide and ceramics and having fine and complex shapes with a high aspect ratio. The PCD ball end mill has a distinctive feature of its cutting edge, which it has a simple spherical shape without sharp cutting edge found on conventional cemented carbide and cubic boron nitride (cBN) ball end mills. The rake angle varies depending on the depth of cut. In cutting using the PCD ball end mills, flow type chips are observed and mirror finish surface without micro fracture can be realized by adopting the ductile-cutting mode. However, the mechanism of chip generation in this cutting with the PCD ball end mills has not been fully clarified. In this study, to simulate the cutting with the PCD ball end mill, an orthogonal cutting experiment was conducted using a commercial cutting insert tool having a fine and sharp cutting edge made of PCD. In addition, we designed an experimental setup with a spring constant force system for applying simulated thrust force of the PCD ball end mill. As a result, the chips formed at all rake angles down to −75° and the relationship between the negative rake angles and the chip generation mechanisms were clarified.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.