Cutting performance of end mills with different helix angles

✍ Scribed by S. Ema; R. Davies

• Book ID: 103924123
• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 603 KB
• Volume: 29
• Category: Article
• ISSN: 0890-6955
• DOI: 10.1016/0890-6955(89)90033-3

✦ Synopsis

In this paper an investigation of the cutting performance of several end mills with right and left hand helix angles is reported. Cutting tests were performed on aluminum alloy L65 for three milling processes in which cutting force, surface roughness and concavity of a machined plane surface were measured. The cutting performance of the end mills was assessed using variance analysis. The investigation showed that end mills with left hand helix angles are generally less effective than those with right hand helix angles, except for the case where the helix angle is small. The effects of spindle speed, depth of cut and feed rate on the cutting force and the surface roughness are generally significant. There is no significant difference between down milling and up milling with regard to the cutting force, although the difference between them regarding the surface roughness was large.