HAMMER PEENING WITH A PIEZO-ACTUATED TOOL FOR SURFACE FINISHING

Abstract

Low roughness of free-form surfaces represents a challenge in production of forming tools. In the industry, the free-form surface is grinded and polished manually. The technology of hammer peening has the capability to replace the time consuming handcraft by automated machining with high productivity and other positive effects, like increased hardness and compressive residual stress in the surface layer. This leads to a high wear resistance of the machined surface. The hammer peening can be conducted with a piezo-actuated tool. The high frequency of such a tool allows achieving higher productivity than other actuator principles used in hammer peening tools. In this paper, a piezo-actuated hammer peening tool working in its mechanical resonance is presented. Furthermore, a cross-domain model including the process, the mechanical and the electrical part of the tool is explained. This model is further used for optimization of the process and the tool. The functionality of the tool is demonstrated by machining results.

Recommended articles

ULTRA NANOINDENATION TEST OF INJECTION POLYBUTYLENE TEREPHTHALATE (PBT) IRRADIATED BY LOW DOSES BETA IRRADIATION

MARTIN MIZERA, DAVID MANAS, MIROSLAV MANAS, LENKA GAJZLEROVA
Keywords: WAXS | FTIR | ß-irradiation | mechanical properties | microhardness | polybutylene terephthalate (PBT)

MODELLING OF BIOMATERIALS PROPERTIES MAGNESIUM-BASED ALLOYS

ANTON PANDA, KONSTIANTYN DYADYURA
Keywords: biodegradable metallic implants | orthopaedics | biomaterials | in vitro and in vivo corrosion | biocompatibility | magnesium composite | magnesium alloys | modelling

CALIBRATION OF PHOTOMETER-BASED DIRECT-READING AEROSOL MONITORS

MIROSLAV DADO, LUCIA MIKUSOVA, RICHARD HNILICA, ALENA OCKAJOVA
Keywords: sampling system | gravimetric reference | airborne particle concentration | correction factor | photometer

DIAGNOSTICS AND MAINTENANCE OF MACHINE TOOL SPINDLES- NEW VIEWS

ONDREJ HOLUB, MILOS HAMMER
Keywords: visualization | vibrodiagnostics | offline- online diagnostics | technical diagnostics | maintenance | industry 4.0