The subject of the research was Underfloor Wheel Lathes de-signed to regenerate profiles running wheels and brake discs heavy rail vehicles without removing wheelsets. These machines can also be used wheel sets in trolleys dismantled from or themselves. machine tools operate a pass-through system. Two differing structure supporting sys-tem were tested: monolithic folding. Conclusions are based ...

In this paper, the refurbishing of worn-out brake discs by coating with powder via direct energy deposition (DED) is evaluated. A medium carbon steel was used to coat cast-iron discs. Deposition carried out directly on disc surface or, alternatively, after a previous buffer layer made stainless steel. It seen that use ensured good adhesion, despite formation cast microstructures at interfaces b...

Objective: It is believed that drivers play a crucial role in accidents. Paying attention to brake lights, a driver may find out about danger and react. Rear-end collision accidents refer to the part of the accidents due to driver inattention or slow reaction. The aim of this study was to determine the effect of dynamic flashing brake lights (7 Hz) on drivers' brake reaction time using the driv...

Abstract The effectiveness of railway brakes is highly dependent on the thermal condition brake disc and friction linings. An effective research method for heat transfer process in was computer simulation experimental tests a full-size dynamometric test bench. A two-dimensional, axially symmetric numerical model transient conductivity presented. Appropriate boundary conditions problem were appl...

Based on the microscopic structure of fiber-reinforced composite materials, a finite element analysis model was developed using LS-DYNA software to simulate damage carbon-ceramic brake discs under high-speed foreign particles impact conditions. The incorporated Chang-Chang failure criterion intra-layer and introduced material stiffness reduction scheme investigate process mechanism discs. resul...

A binary C/C brake disc (i.e., the test disc) was prepared with a (pyrolytic carbon/resin carbon) matrix using modified natural gas as carbon source through isothermal chemical vapor infiltration (ICVI) process directed flow and pressure impregnation carbonization (PIC) liquid-phase furfural acetone resin. The microstructural, mechanical, thermal, friction wear properties of were comprehensivel...

Gray cast iron (GCI) is a conventional material used in industrial applications and it well known for its usage brake disc fabrication. In the case of vehicles that serve passenger transport, one solutions to prolong lifetimes discs can be laser clad their surface with harder corrosion-resistant materials. This research aims improve mechanical properties using Inconel 718 (IN718) metallic powde...