scholarly journals Discussion: “Shaft Surface Finish Is an Important Part of the Sealing System” (Heyn, W. O., 1968, ASME J. Lubr. Technol., 90, pp. 375–382)

1969 ◽  
Vol 91 (1) ◽  
pp. 212-213
Author(s):  
C. E. Dietzel
Keyword(s):  
Surface Finish ◽  
Shaft Surface

Hydrodynamic Effects of Shaft Surface Finish on Lip Seal Operation

2002 ◽  
Vol 45 (3) ◽  
pp. 404-410 ◽  
Author(s):  
Richard F. Salant ◽  
Dawei Shen
Keyword(s):  
Surface Finish ◽  
Lip Seal ◽  
Hydrodynamic Effects ◽  
Shaft Surface

Shaft Surface Finish Is an Important Part of the Sealing System

1968 ◽  
Vol 90 (2) ◽  
pp. 375-381 ◽  
Author(s):  
W. O. Heyn
Keyword(s):  
Abrasive Wear ◽  
Surface Finish ◽  
Poor Performance ◽  
Special Method ◽  
Plunge Grinding ◽  
System A ◽  
Shaft Seals ◽  
Shaft Surface ◽  
Selection Of

Current specifications for shaft finishes to be used with shaft seals are inadequate. Many finishes which meet these current specifications do not perform well in sealing applications because they can cause either leakage or abrasive wear of the seal lip. The practice of leaving the selection of the process to produce the finish up to the shaft manufacturer may lead to poor performance of the sealing system. A new shaft finish specification is proposed which specifies a process to obtain a satisfactory sealing surface. It has been found that machine lead can be generated by plunge grinding. Grinding procedures for avoiding machine lead during plunge grinding are listed. In order to be certain that machine lead is not present, the surface must be inspected for it. Therefore, a special method for checking for machine lead is recommended.

Characterization of machined polystyrene foam

1989 ◽  
Vol 47 ◽  
pp. 372-373
Author(s):  
C. W. Price ◽  
E. F. Lindsey ◽  
R. M. Franks ◽  
M. A. Lane
Keyword(s):  
Surface Finish ◽  
Cell Walls ◽  
Surface Structures ◽  
Efficient Technique ◽  
Low Density ◽  
Polystyrene Foam ◽  
Planar Surfaces ◽  
Machining Characteristics

Diamond-point turning is an efficient technique for machining low-density polystyrene foam, and the surface finish can be substantially improved by grinding. However, both diamond-point turning and grinding tend to tear and fracture cell walls and leave asperities formed by agglomerations of fragmented cell walls. Vibratoming is proving to be an excellent technique to form planar surfaces in polystyrene, and the machining characteristics of vibratoming and diamond-point turning are compared.Our work has demonstrated that proper evaluation of surface structures in low density polystyrene foam requires stereoscopic examinations; tilts of + and − 3 1/2 degrees were used for the stereo pairs. Coating does not seriously distort low-density polystyrene foam. Therefore, the specimens were gold-palladium coated and examined in a Hitachi S-800 FESEM at 5 kV.

Effect of denture cleansers, surface finish, and temperature on Molloplast B resilient liner color, hardness, and texture

2000 ◽  
Vol 9 (3) ◽  
pp. 148-155 ◽  
Author(s):  
Han-Kuang Tan ◽  
Andrew Woo ◽  
Silvia Kim ◽  
Michael Lamoureux ◽  
Michael Grace
Keyword(s):  
Surface Finish ◽  
Denture Cleansers
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