DYNAMIC OF MACHINE TOOLS

PENDAHULUAN 

Experimental modal analysis is quickly developed area of science in last years and becomes as efficient as the finite element method. Experimental approach for solving technical problems is a means to estimate or evaluate modal properties of a mechanical structure. The paper is focused at dynamic properties of machine center, namely at the resonance frequencies and vibration shapes of a simplified tool-work piece system. All this properties are identified by measurements. The machine tool vibration was excited by impulse force and a response of excited vibration was recorded. The measurement points for vibration were selected at the spindle head and the table. We are forced to give answers how to avoid a machine state, given by its rotational speed, when machining process is spoiled by vibration.
Untuk mendukung sistem produksi yang memadai diperlukan tenaga kerja yang handal atau peningkatan keahlian tenaga kerja profesi Dinamika Mesin Perkakas.

SIAPA SEBAIKNYA MENGIKUTI TRAINING INI ?
Para praktisi tingkat operator, tingkat penyelia atau perencana bidang dinamika mesin perkakas pada industri rekayasa.

TUJUAN TRAINING
Setelah mengikuti training ini diharapkan para peserta memiliki pemahaman lebih tentang pengetahuan dinamika mesin perkakas.

CAKUPAN MATERI TRAINING

General specification of the problems.
Static and dynamic stiffness.

Criteria for requirements on stiffness, some basic concepts and notations, deformation of the frame caused by weight forces, deformation of the structure caused by cutting forces, forced vibrations.

Stability against chatter.

General features of chatter, the theory of chatter and stability analysis, procedure in the investigation of the stability pf machine tools, example of the analysis, damping and dampers, chatter in grinding, interpretation of the results of the theory.

Static deformation of machine tool structures.

Deformation of machine tool structures, basic equation for thin-walled box structures, stresses and deformation of closed box structures subjected to bending and shear, stresses and deformation produced by twisting moment, correction coefficients for stiffness of thin-walled beams weakened by apertures, static stiffness of the column of the horizontal boring and milling machine.

Structural analysis

Static analysis, dynamic analysis, application to a plano-milling machine structure

INSTRUCTOR

Ir. Sugeng Isdwiyanudi, MT.   and Team