P/M Valve Seat Inserts: Air Quenching and Characterization

2017 ◽  
Author(s):  
Maurilio Pereira Gomes ◽  
Igor Santos ◽  
Camila Couto ◽  
Cristiano Mucsi ◽  
Jesualdo Luiz Rossi ◽  
...  
Keyword(s):  
Valve Seat ◽  
Valve Seat Inserts

Sintered Valve Seat Inserts – Microstructural Characterisation

2006 ◽  
pp. 65-70
Author(s):  
E.S. Jesus Filho ◽  
Edilson Rosa Barbarosa Jesus ◽  
Lucio Salgado ◽  
S.L. Jesus ◽  
M.A. Colosio ◽  
...  
Keyword(s):  
Valve Seat ◽  
Microstructural Characterisation ◽  
Valve Seat Inserts

Machining and Mechanical Characterisation of PM Materials for Valve Seat Inserts

2005 ◽  
pp. 79-85
Author(s):  
E.S. Jesus Filho ◽  
Lucio Salgado ◽  
S.L. de Jesus ◽  
J.L. Rossi ◽  
M.A. Colosio ◽  
...  
Keyword(s):  
Valve Seat ◽  
Mechanical Characterisation ◽  
Valve Seat Inserts

New Materials for Valve Seat Inserts

MTZ worldwide ◽  
2015 ◽  
Vol 76 (11) ◽  
pp. 30-35
Author(s):  
Denis Christopherson ◽  
Frank Zwein
Keyword(s):  
New Materials ◽  
Valve Seat ◽  
Valve Seat Inserts

scholarly journals Microstructural characterization of air quenched valve seat inserts obtained with AISI D2 tool steel

2017 ◽  
Author(s):  
M. P. Gomes ◽  
I. P. Santos ◽  
C. P. Couto ◽  
E. G. Betini ◽  
M. A. Colosio ◽  
...  
Keyword(s):  
Tool Steel ◽  
Microstructural Characterization ◽  
Valve Seat ◽  
Aisi D2 ◽  
Valve Seat Inserts ◽  
Aisi D2 Tool Steel

High thermal conductivity valve seat inserts and guides

MTZ worldwide ◽  
2018 ◽  
Vol 79 (9) ◽  
pp. 42-49
Author(s):  
Philippe Beaulieu ◽  
Sascha Orazem ◽  
Gunther Reissinger ◽  
David Woodward
Keyword(s):  
Thermal Conductivity ◽  
High Thermal Conductivity ◽  
Valve Seat ◽  
Valve Seat Inserts

Double-Layer Valve Seat Inserts for Passenger Car Diesel Engines

1985 ◽  
Author(s):  
Naoki Motooka ◽  
Nobuhito Kuroishi ◽  
Mamoru Moritani ◽  
Akira Manabe ◽  
Koji Kazuoka ◽  
...  
Keyword(s):  
Double Layer ◽  
Diesel Engines ◽  
Valve Seat ◽  
Passenger Car ◽  
Valve Seat Inserts

Sintered Valve Seat Inserts – Microstructural Characterisation

2006 ◽  
Vol 530-531 ◽  
pp. 65-70 ◽  
Author(s):  
E.S. Jesus Filho ◽  
Edilson Rosa Barbarosa Jesus ◽  
Lucio Salgado ◽  
S.L. Jesus ◽  
Marco Antonio Colosio ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Speed ◽  
Diffusion Mechanism ◽  
High Speed Steel ◽  
Heat Treatment Condition ◽  
Commercial Application ◽  
Valve Seat ◽  
Before And After ◽  
The Matrix ◽  
Valve Seat Inserts

This work presents aspects related to new sintered materials for valve seat inserts application. Two types of materials were evaluated. The materials were made using powder metallurgy technique from a basic mixture of high-speed steel (AISI M3/2), iron and carbide powders. The microstructures of these materials before and after heat treatment are presented. Under the heat treatment condition, the activation of the diffusion mechanism among phases was promoted and a better distribution of the Cu phases along the matrix was achieved. The results indicate that the materials under development have a potential for commercial application as valve seat inserts.

Machining and Mechanical Characterisation of PM Materials for Valve Seat Inserts

2005 ◽  
Vol 498-499 ◽  
pp. 79-85 ◽  
Author(s):  
E.S. Jesus Filho ◽  
Lucio Salgado ◽  
S.L. de Jesus ◽  
J.L. Rossi ◽  
Marco Antonio Colosio ◽  
...  
Keyword(s):  
Cutting Forces ◽  
High Speed ◽  
High Speed Steel ◽  
Hard Metal ◽  
Commercial Application ◽  
Valve Seat ◽  
Mechanical Characterisation ◽  
New Development ◽  
Valve Seat Inserts ◽  
Seat Insert

This article shows some fabrication aspects related to the obtention of sintered valve seat insert. This insert was made of a mixture of high-speed steel powders and iron powders plus NbC. This is a new development aiming the substitution of Co alloys currently used for valve seat inserts. The physical properties, mechanical properties and machining behaviour are discussed. The machining characteristics in terms of tool wear, cutting forces and chips morphology of the insert was compared to available commercial insert. The machining results indicate that the material under development has potential for commercial application and shows good machining evidences, in terms of equivalent cutting forces for ceramic tool. In addition, the machining using hard metal tool was susceptible to hardness variation observed for the material under development. Therefore, the machining tests point out the necessity for a microstructure homogenisation of the obtained material.

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