-
MICRO: Tool/Fab Automation
the particle-free and ion-free manufacturing protocols found in the semiconductor industry. In fact, lubricating oil and particle-generating cutting processes are commonplace in machine-shop environments. Attempts by OEMs to clean outsourced parts in-house prior to final shipments or to require machine
-
Surface Finish: A Machinist`s tool. A Design Necessity
processes impose characteristic irregularities on a part's. surface. Additional factors such as cutting tool selection, machine tool condition, speeds, feeds, vibration and. other environmental influences further influence these irregularities. Texture consists of the peaks and valleys that make up
-
Application of Dempster-Shafer Theory to Oil Monitoring
with different machines because the applied load, operation environment, working temperature, lubricating condition and operation period are changeable. Oil monitoring can be used to diagnose the tribological failures. Generally, through a sample from lubricating system in a monitored machine, the tribological
-
Functions of Modern Rotating Unions: Separate Transfer of Two Fluids in a Safe Manner
For several applications such as machine tools, it is necessary to transfer coolants through the spindle and lubricating oil to the tool changer into the spindle for processing. There may also be other cases where hydraulic oil must be tramsferred through the rotating part of a machine
-
Other Nonmetallic Bearings
to 35 to 50 psi. There is no limit on speed, as long as operating temperature remains below 150°F. Wood: Lignum vitae and oil-impregnated maple and oak offer self-lubricating properties, low cost, and clean operation. Wood bearings are useful at temperatures up to 150°F and at speeds up to several
-
Great balls of ceramic
balls from Saint-Gobain, East Granby, Conn., have a <0.004-micron surface finish, four times smoother than steel balls used in most machine-tool bearings. Cerbec balls are said to lower internal friction by up to 25% when mated with typical raceway steels which have a 1 to 2 micron finish. Ceramic
-
Great balls of ceramic
mostly govern bearing internal friction. Cerbec silicon-nitride ceramic balls from Saint-Gobain, East Granby, Conn., have a <0.004-micron surface finish, four times smoother than steel balls used in most machine-tool bearings. Cerbec balls are said to lower internal friction by up to 25% when mated
-
Bearings That Lube for Less
maintenance and, if needed, replacement of tooling to ensure consistent products. An on-site machine shop can help ensure quick tool turnaround and tooling quality. Designers should monitor in-process quality continuously. The technicians setting up the presses and monitoring control parameters