Ultrasonic Measurement of Wall Thickness in Diesel Cylinder Liners

1947 ◽  
Vol 19 (2) ◽  
pp. 368-371 ◽  
Author(s):  
Francis W. Struthers ◽  
Horace M. Trent
Keyword(s):  
Wall Thickness ◽  
Ultrasonic Measurement ◽  
Diesel Cylinder ◽  
Cylinder Liners

Ultrasonic measurement of post-mastectomy chest wall thickness

1970 ◽  
Vol 43 (511) ◽  
pp. 458-461 ◽  
Author(s):  
S. M. Jackson ◽  
G. P. Naylor ◽  
I. J. Kerby
Keyword(s):  
Chest Wall ◽  
Wall Thickness ◽  
Ultrasonic Measurement

Cylinder Liner in Ductile Cast Iron for High Loaded Combustion Diesel Engines

2011 ◽  
Author(s):  
Edney Deschauer Rejowski ◽  
Edmo Soares ◽  
Ingo Roth ◽  
Steffen Rudolph
Keyword(s):  
Mechanical Properties ◽  
Cast Iron ◽  
Wall Thickness ◽  
Diesel Engines ◽  
Ductile Iron ◽  
Gray Cast Iron ◽  
Young Modulus ◽  
Gray Cast ◽  
Cast Material ◽  
Cylinder Liners

With the increase of combustion loading and the trend to reduce engine size, there is a need for thinner but stronger wet cylinder liners. While most of the current cylinder liners are made of gray cast iron, due to its good tribological behavior, machinability performance and competitive price, alternative casting materials like compact graphite iron, ductile iron and even steel are being considered to cover the future engine demands. In this paper, a new ductile iron (DI) cast material for wet cylinder liners is presented. The material has about 60 and 70% higher limits respectively for tensile stress and fatigue resistance as compared to conventional gray cast irons, but without penalty on the tribological properties. There is also a potential improvement to avoid cavitation on the outside surface due to its higher young modulus, which also equates to a higher stiffness. The tested cylinder liners were induction hardened on the running surface and a slide hone process was used to improve wear and scuffing resistance. The liners were tested in a HDD engine with PCP of 245 bar and showed similar wear as observed with conventional cylinder liners of gray cast iron material. The DI cylinder liners were also tested in an abusive scuffing engine test without any concern. The improved mechanical properties of the described new DI material introduce possibilities to reduce liner wall thickness or increase specific output. The preliminary evaluation in this paper showed that this new material is feasible for HDD diesel engines with PCP up to 250 bar. In cases that the customer needs to increase the bore diameter for output reasons there is the potential to reduce the liner wall thickness up to 25% based on high mechanical properties (UTS, Young Modulus and fatigue strength). In both cases, it’s recommended a FEA analysis to support the new component design.

Ultrasonic measurement of residual wall thickness during gas assisted injection molding

2007 ◽  
Vol 47 (11) ◽  
pp. 1730-1739 ◽  
Author(s):  
E.C. Brown ◽  
L. Mulvaney-Johnson ◽  
P.D. Coates
Keyword(s):  
Injection Molding ◽  
Wall Thickness ◽  
Ultrasonic Measurement

Ultrasonic measurement of micrometric wall-thickness loss due to corrosion inside pipes

2013 ◽  
Author(s):  
Julio C. Adamowski ◽  
Flavio Buiochi ◽  
Marcos Tsuzuki ◽  
Nicolas Perez ◽  
Claudio S. Camerini ◽  
...  
Keyword(s):  
Wall Thickness ◽  
Ultrasonic Measurement ◽  
Thickness Loss

Effect of structure on the wear of quenched martensitic cast iron for diesel cylinder liners

1990 ◽  
Vol 32 (12) ◽  
pp. 931-934
Author(s):  
B. M. Astashkevich ◽  
O. M. Eparkhin ◽  
G. A. Maznova
Keyword(s):  
Cast Iron ◽  
Diesel Cylinder ◽  
Cylinder Liners ◽  
Effect Of Structure

An ultrasonic measurement of superficial femoral artery wall thickness

1989 ◽  
Vol 15 (8) ◽  
pp. 723-728 ◽  
Author(s):  
Kirk W. Beach ◽  
Carol A. Isaac ◽  
David J. Phillips ◽  
D.Eugene Strandness
Keyword(s):  
Wall Thickness ◽  
Femoral Artery ◽  
Superficial Femoral Artery ◽  
Ultrasonic Measurement ◽  
Artery Wall
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