ŠIMEČEK Jiří UWB in Pilsen

Influence of Surface State Involved by Different Machining Technologies on Fatigue Properties of Steel X210Cr12

Co-authors KŘÍŽ Antonín

An important aspect of the fatigue properties of dynamically loaded components is the surface state. It is known that notches, cracks, and also not carefull machining negatively affect the future life of this component, and the effect of technological and structural violations will be accumulated and consequently can be a reason of a future damage. This paper describes the relation between the state of the surface that has been machined in various ways, and its fatigue characteristics. Experimental surface was polished or milled under different conditions. As expected, were achieved worst fatigue characteristics of milled samples. For the experiment, fatigue machine by company Shenck was used and normalised samples.