Frictionally damped tool holder for long projection cutting tools

Denkena, Berend; Bergmann, Benjamin; Teige, Christian

doi:10.1007/s11740-018-0847-7

Cited by 6 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Freyermuth et alintegrated a damping element in a boring tool holder in the form of an elastically deformable mass with controlled stiffness [4]. Denkena et al integrated a friction damper into a long tool holder shaft for increasing depth of cut by 75% for a long projecting tool holder [5]. Lee et al determined optimal location of the passive vibration absorber in the tool holder to minimize vibrations due to an external source [6].…”

Section: Introductionmentioning

confidence: 99%

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

Satpute¹,

Iwaniec

2022

MATEC Web Conf.

View full text Add to dashboard Cite

The paper presents novel design of vibration absorber with innovative features including use of flexible link based mechanism at the interface of tool holder and cutting tool. The mechanism ensures modification of the dynamic force interaction at the damping element and results in lower force transmissibility. It ensures amplification of the relative velocity at the damping element, which results in significant reduction of the damping element mass used for energy dissipation. The presented absorber has advantages of passive and economical operation in comparison to the active and semi-active solutions. Further, the proposed solution results in up to 53% reduction in the force transmissibility. A real size design has been presented for frequency range of 0-1100 Hz and maximum force amplitude of 700 N. Numerical simulations have been performed with consideration of flexible joint and structural element dynamics. Simulation results with FEA and PRBM approach have been compared with detailed analysis of the important design parameters.

show abstract

Section: Introductionmentioning

confidence: 99%

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

Satpute¹,

Iwaniec

2022

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…Yang et al (2019) designed a milling cutting tool by embedding VA into the tool bar, and the frequency response of the tool in all directions was reduced by 75%. Denkena et al (2018) increased the damping of the cutting tool through the internal friction of the viscoelastic material to achieve machining stability. Razak et al (2016) designed a tungsten carbide cutting tool for milling super alloys.…”

Section: Introductionmentioning

confidence: 99%

Design of a slender turning cutting tool via a vibration absorber equipped with piezoelectric ceramic

Yang

Gao

Liu

2021

Journal of Vibration and Control

View full text Add to dashboard Cite

Turning cutting tool with large length–diameter ratio has been essential when machining structural part with deep cavity and in-depth hole features. However, chatter vibration is apt to occur with the increase of tool overhang. A slender turning cutting tool with a length–diameter ratio of 7 is developed by using a vibration absorber equipped with piezoelectric ceramic. The vibration absorber has dual functions of vibration transfer to the absorber mass and vibration conversion to the electrical energy via the piezoelectric effect. Equations of motion are established considering the dual damping from the piezoelectric ceramic and rubber gasket. The equivalent damping of piezoelectric ceramic is derived, and the geometries are optimized to achieve optimal vibration suppression. The modal analysis demonstrates that the cutting tool with the vibration absorber can reach 80.1% magnitude reduction. Machining tests are carried out in the end. The machining acceleration and machined surface roughness validate the vibration suppression of the VA, and the output voltage by the piezoelectric ceramic demonstrates the ability of vibration sensing.

show abstract

Mechatronic stiffness of cable-driven mechanisms: a study on production machine model

Neusser

Nečas

Pelikán

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Position control of the mechanical structure with naturally limited stiffness is a common problem. Moreover, the system is usually exposed to random exciting by the external force effects and yet it is needed to hold the system in the desired position. Such an example in engineering practice can be the machine tool quill slim structure, which determines the machining accuracy and the machined surface quality. The limited structure stiffness can be overcome by suitable support structure solution. In principle, it is a matter of introducing the necessary force effect in the place where it is necessary to ensure the required position. A promising means how to apply control force to the flexible structure tip can be a thin cable structure with the force actuation and proper force control. The resulting system is characterized by increased stiffness achieved in a mechatronic manner. Therefore, the introduced concept is called mechatronic stiffness. The article describes selected mechanical arrangement of the mechatronic stiffness concept, its features, behaviour and control results. The proposed approach offers a solution for precise position control of the flexible structure. An experimental device was created in parallel with the simulation experiment and preliminary simulation results are obtained. The described concept is transferable to other flexible structures such as various manipulators.

show abstract

Frictionally damped tool holder for long projection cutting tools

Cited by 6 publications

References 13 publications

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

A Flexible Mechanism Based Vibration Isolator for Machine Tool Application

Design of a slender turning cutting tool via a vibration absorber equipped with piezoelectric ceramic

Mechatronic stiffness of cable-driven mechanisms: a study on production machine model

Contact Info

Product

Resources

About