Experimental verification of the deep hole boring bar model

Abstract

The article presents the results of the experimental verification of the deep hole boring bar tool model. The aim of the work was to obtain a verified boring bar tool model, which in further scientific research will be a starting point for creating a prototype of a tool with a new design, in which dynamic properties will be improved. The research was divided into two stages. In the first stage, modal studies of the model and the real object were carried out. The obtained discrepancy between numerical and experimental results below 8% allows to state that the model is characterized by dynamic properties occurring in the real boring bar. In the second stage of the research, static tests were carried out. The object was loaded with forces of 98.6 N, 195.0 N, 293.8 N. The obtained slight discrepancy in the results of numerical and experimental tests below 3% allows to state that the model reflects the static properties of the real boring bar. The high convergence of the theoretical and experimental results allows for the conclusion that the numerical model has been verified positively.

Operating Properties of Deep Hole Boring Tools with Modified Design

“…This is a modular tool which includes a head with the designation K40-MWLNR/L08 (Pabianicka Fabryka Narzędzi "PAFANA" S.A., Pabianice, Poland) and a shank with the designation A40-K40 300 (Pabianicka Fabryka Narzędzi "PAFANA" S.A., Pabianice, Poland) [10]. At the first stage of the research, the experimental verification of the deep hole boring bar model was performed [11]. A 3D model of the boring bar is shown in Figure 1.…”

Finite element analysis and experimental verification of high reliability synchronous reluctance machine

“…Among others the finite element method become widely used in modeling of variety of technical devices [50]. Due to its versatility FEM has been successfully employed for solving complex problems, among others for modeling magneto-optics for the aircraft skins inspections [7] in stress simulations for fatigue life prediction of a radial cylindrical roller bearing [6] as well as to study temperature and strain fields in gas-foil bearings [47] and modeling a deep-hole boring tool [15]. The multi-domain approach for modeling pantograph-catenary interaction has been discussed in [48] while mechanical behavior of cork-rubber pads for vibration isolation exploiting FEM has been proposed by [19].…”