Fundamentals of Reaming Operation

Fundamentals of Fluid Film Journal Bearing Operation and Modeling

Widely used in turbomachinery, the fluid film journal bearing is critical to a machine’s overall reliability level. Their design complexity and application severity continue to increase making it challenging for the plant machinery engineer to evaluate their reliability. This tutorial provides practical knowledge on their basic operation and what physical effects should be included in modeling ...

Drilling and Reaming

[Intramedullary reaming in Ribbing disease].

Ribbing disease is a rare benign sclerosing bone dysplasia. It presents with an increased bone density at the diaphysis with cortical endosteal/periosteal thickening and affects predominantly the lower extremities. We report a case of a 28 year-old woman with a this condition in her tibia that occluded the medullary cavity, with severe pain that could not be relieved with anti-inflammatory ther...

Reproducibility of a reaming test

The reproducibility of a reaming test was analysed to document its applicability as a performance test for cutting fluids. Reaming tests were carried out on a drilling machine using HSS reamers. Workpiece material was an austenitic stainless steel, machined using 4.75 m·min cutting speed and 0.3 mm·rev feed. A mineral straight oil and a water-based lubricant at two different oil concentrations ...

The importance of reaming the posterior femoral cortex before inserting lengthening nails and calculation of the amount of reaming

BACKGROUND Lengthening nails have been used to correct limb length discrepancy caused by different etiologies, as well as for post-traumatic reasons. Two important lengthening nail-related complications are damage to the distraction mechanism and femoral fractures around the nail tip. As a result of the curved anatomy of the femur, straight nails impinge on the anterior cortex. Therefore, prope...