Cam-controlled boring bar

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:865787

Glatthorn, Raymond H ^[1]

---

1. St. Petersburg, FL

A cam-controlled boring bar system (100) includes a first housing (152) which is rotatable about its longitudinal axis (154), and a second housing in the form of a cam-controlled slide (158) which is also rotatable about the axis (154) as well as being translatable therealong. A tool-holder (180) is mounted within the slide (158) for holding a single point cutting tool. Slide (158) has a rectangular configuration and is disposed within a rectangularly configured portion of the first housing (152). Arcuate cam slots (192) are defined within a side plate (172) of the housing (152), while cam followers (194) are mounted upon the cam slide (158) for cooperative engagement with the cam slots (192). In this manner, as the housing (152) and slide (158) rotate, and as the slide (158) also translates, a through-bore (14) having an hourglass configuration will be formed within a workpiece (16) which may be, for example, a nuclear reactor steam generator tube support plate.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC02-77ET37201
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4576068
• OSTI ID: 865787
• Country of Publication: United States
• Language: English

Related Subjects

cam-controlled
boring
bar
100
housing
152
rotatable
longitudinal
axis
154
form
slide
158
translatable
therealong
tool-holder
180
mounted
holding
single
cutting
tool
rectangular
configuration
disposed
rectangularly
configured
portion
arcuate
slots
192
defined
plate
172
followers
194
cooperative
engagement
manner
rotate
translates
through-bore
14
hourglass
formed
workpiece
16
example
nuclear
reactor
steam
generator
tube
support
steam generator
nuclear reactor
cutting tool
longitudinal axis
support plate
tube support
rectangular configuration
boring bar
reactor steam
generator tube
hourglass configuration
cam-controlled boring
/82/408/