Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Evaluation of coefficient of friction of uncoated and TiN coated tools in deep drawing

Evin E., Audy J.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2010

z. 80 [274]

65-72

The present investigation was set up to examine both predicted and experimental values of forces, power and friction in drawing cups from low carbon steel blanks using the same die set but in different uncoated and TiN coated conditions. The results showed a good agreement between predicted and experimental values. In addition, the findings demonstrated that the TiN coated tools reduced the friction at a tool - blank - die - interface (by about 5%), which in turn reduced the forces (by about 7%) and improved the final product quality, when compared to the performance of uncoated tools.

Evaluation of forces and work generated by uncoated and TiN coated tools in backward extrusion of cylindrical - low carbon steel - slugs

Audy J., Evin E.

Zeszyty Naukowe Politechniki Świętokrzyskiej. Nauki Techniczne

2008

Z. 7

221-228

The paper describes, from qualitative and quantitative point of view, the forces, power and press work in relation to a same die set, but in different uncoated and TiN coated conditions, used for backward extruding 'Bonderlube' coated a Type 1010 low carbon steel slugs. Predictive approaches for technological performance measures were also included in the study for comparison of results. The findings showed a good agreement between predicted and experimental values. It was determined that the overall benefit of the TiN coated tools when compared to the uncoated tools was in reducing the forces by about 5.7%, and the power and work by about 6.4% due to improved friction at the punch / slug / work piece material interface.