A special high-stiffness tool was designed for the purpose of experimentation, allowing the burnishing of 40 120 mm openings.
Hydroforming offers several advantages as compared with conventional manufacturing via stamping and welding, such as part consolidation, weight reduction, improved structural strength and stiffness, lower tooling costs, fewer secondary operations, tight dimensional tolerances, low springback, and reduced scrap.
In conclusion: while patients in low disease activity frequently report stiffness, the tools to measure stiffness are of unknown validity due to a lack of data on performance of patient reported measures of stiffness in RA low disease activity or remission.
The experiments were performed in a symmetric set-up with large stiffness and stable tool clearances, using various combinations of tool clearance and clamping configuration.
This analysis investigated the effect of each cutting parameter on tool stiffness and damping, and yielded an empirical model for predicting the behavior of the tool stiffness variation.
Axial stiffness of the tool holder: K Tool_holder = K Flexure + K Piezo= 10.88 N/μm + 20.00 N/μm=30.88 N/μm.
The known tool stiffness enables the detection of the static tool deflection from the force signals during a milling process.
The experimental results show that the proposed placement method is effective for enhancing the stiffness of machine tool supports.
A methodology for tuning the stiffness of machine tool supports is described based on a stiffness model using the contact stiffness approach.
In this section, the results show that it is possible to use new method in realizing real-time identification and eliminating machine tool stiffness effect.
Especially the reduced tool stiffness in most measuring concepts, caused by the sensor integration, leads to a die clearance variation which alters the measured results.
