Flashcards
Untitled
Cards in this deck (7)
- 1what is orthogonal cutting?Large forces are
transmitted in front of the
tool, causing the metal to
shear in a wide zone. the
stress builds up both in
the metal and the
distortion of the tool. The
highest load on the tool
face is slightly back from
the tip. - 2what happens in the primary deformation zone?-Material Shears to
form a chip which
slides along the
surface of the tool
-Generates most heat
-Force Transmitted
from Tool face to the
primary zone via chip - 3what happens in the secondary deformation zone?-friction on the tool
face
-raises chip
temperature to
maximum
- 4what direction is the cutting force?in the direction of primary motion
- 5what does the cutting force comprise of?-force required to form chip
-non prouductive sources such as
-forces due to cylindrical cutting edge
-fiction between flank and woekpeice - 6what is the equation for energy consumption of the cutting force?= Cutting force x speed
- 7how does a metal cut if it isn't ductile?tends to fracture to form discrete chips
- As the cutting tool advances
through the metal, the increased
stress around hard inclusions
causes local failure and the
formation of discrete chips
Information
- Description
- Flashcards on Untitled, created by Ivor Gordon on 30/05/2015.
- Created by
- Ivor Gordon
- Views
- 0
- Rating