FTS-based Face Milling of Micro Structures

Köhler, Jens; Seibel, Alexander

doi:10.1016/j.procir.2015.04.011

Cited by 13 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As for this new micro-/ nano-machining system, structure generation can be regarded as a combination of servo motion-based direct cutting and tertiary motion modulation. Although rotary vibrations have been introduced for the purpose of FTS-milling [29][30][31] and assistance of machining brittle materials [32][33][34], the commonly adopted unidirectional vibrations along the axial direction may significantly restrict flexibility in machining [29][30][31][32][33]. Thus, to realize the RSV process for the secondary nano-structure generation, a piezoelectrically actuated compliant vibrator with spatial vibrations along three translational directions is also introduced.…”

Section: Introductionmentioning

confidence: 99%

A novel diamond micro-/nano-machining process for the generation of hierarchical micro-/nano-structures

Zhu

Ehmann

et al. 2016

J. Micromech. Microeng.

View full text Add to dashboard Cite

A new mechanical micro-/nano-machining process that combines rotary spatial vibrations (RSV) of a diamond tool and the servo motions of the workpiece is proposed and applied for the generation of multi-tier hierarchical micro-/nano-structures. In the proposed micro-/nanomachining system, the servo motion, as the primary cutting motion generated by a slow-toolservo, is adopted for the fine generation of the primary surfaces with complex shapes. The RSV, as the tertiary cutting operation, is superimposed on the secondary fundamental rotary cutting motion to construct secondary nano-structures on the primary surface. Since the RSV system generally works at much higher frequencies and motion resolution than the primary and secondary motions, it leads to an inherent hierarchical cutting architecture. To investigate the machining performance, complex micro-/nano-structures were generated and explored by both numerical simulations and actual cutting tests. Rotary vibrations of the diamond tool at a constant rotational distance offer an inherent constant cutting velocity, leading to the ability for the generation of homogeneous micro-/nano-structures with fixed amplitudes and frequencies of the vibrations, even over large-scale surfaces. Furthermore, by deliberately combining the non-resonant three-axial vibrations and the servo motion, the generation of a variety of micro-/nano-structures with complex shapes and with flexibly tunable feature sizes can be achieved.

show abstract

Section: Introductionmentioning

confidence: 99%

A novel diamond micro-/nano-machining process for the generation of hierarchical micro-/nano-structures

Zhu

Ehmann

et al. 2016

J. Micromech. Microeng.

View full text Add to dashboard Cite

show abstract

“…There are several different variations of FTS, where the classification of each is based on the driving mechanism behind the oscillatory tool. The three most common variations are piezoelectric (PZT) [50,56,90], Lorentz force (LRT) [62,95,108], and Maxwell normal stress motor-driven (MNM) [69,70,105].…”

Section: Fast-tool Servo Turningmentioning

confidence: 99%

3D printing of optical components via free-radical frontal polymerization

Krupp¹

View full text Add to dashboard Cite

Optical manufacturing is often a process dictated by high-cost machinery and long working times. In this thesis we examine the benefits and drawbacks of the different optical manufacturing technologies, and introduce 3D printing as an alternative approach. Towards this end we present a methodology towards creating freeform optical components via grayscale digital light projection (DLP) frontal polymerization. We present an instrument which can be created cheaply, offer experimental validation of its functionality, and detail the driving algorithms involved. Furthermore, as the nature of our system lends itself well to analyze the curing characteristics of various photoactive compounds, we extensively characterize several free-radical photopolymers in a deoxygenated environment in terms of their curing characteristics as a function of irradiance, cure time, and photoinitiator concentration. We find that the photoresins do not follow the Bunsen-Roscoe reciprocity law for photochemistry, and offer quasiempirical explanations in terms of evolution of the reaction rate constants at constant degree of cure. Finally, we use the designed system to produce optical components and analyze them in terms of their surface quality and form replication, elucidating towards the limiting bounds of this technique.

show abstract

Review on fast tool servo machining of optical freeform surfaces

Zhu

Fang

et al. 2017

Int J Adv Manuf Technol

View full text Add to dashboard Cite

FTS-based Face Milling of Micro Structures

Cited by 13 publications

References 8 publications

A novel diamond micro-/nano-machining process for the generation of hierarchical micro-/nano-structures

A novel diamond micro-/nano-machining process for the generation of hierarchical micro-/nano-structures

3D printing of optical components via free-radical frontal polymerization

Review on fast tool servo machining of optical freeform surfaces

Contact Info

Product

Resources

About