Field Operational Results of Precision Slot Cutting Using Novel Electromechanical Slot-Cutting Technology

2018 ◽  
Author(s):  
Otto N. Fanini ◽  
Alejandro Garcia ◽  
Gerald Ransonet
Keyword(s):  
Slot Cutting

Wooden Door Slot Cutting System of CNC Machine Finite Element Analysis

2013 ◽  
Vol 579-580 ◽  
pp. 603-606
Author(s):  
Xin Bo Jiang ◽  
Quan Hui Wu ◽  
Feng Ming Jing ◽  
Chun Mei Yang ◽  
Ge Luo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Machining Process ◽  
Rotary Table ◽  
Cnc Machine ◽  
Element Analysis ◽  
Wood Processing ◽  
Minimum Number ◽  
Slot Cutting ◽  
Cutting System

Door hardware doors finished slot machining process is a very important step in the process, as doors hardware slots are in scattered locations, different specifications, difficult processing. This paper, the rotary table overcome dispersion slot door hardware, according to the characteristics of wooden slots hardware, selected the minimum number of spindles to satisfy all wood processing hardware slot, making maximize spindle utilization. The use of finite element design rotary table and key components of the cutting system, verify the reasonableness of its structure.

scholarly journals https://www.ijrte.org/download/volume-8-issue-2/

2019 ◽  
Vol 8 (2) ◽  
pp. 4997-5001
Keyword(s):  
Reflection Coefficient ◽  
Resonant Frequency ◽  
Flexible Substrate ◽  
Flexible Substrates ◽  
Patch Antennas ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Narrow Bandwidth ◽  
Bandwidth Limitation ◽  
Slot Cutting

In this paper, the performance of U-slot Rectangular Microstrip Patch Antennas (RMSA) is analyzed by using different flexible substrates. The RMSA is designed to operate for a resonant frequency of 2.45 GHz with flexible substrate materials like Polydimethylsiloxane (PDMS), GML-1032 and Polyethylene. The antenna parameters like reflection coefficient, voltage standing wave ratio (VSWR), radiation pattern, bandwidth and cost are analyzed by keeping all the substrate height same and the value is 2.5mm. U-slot cutting is used in the patch to overcome the narrow bandwidth limitation in RMSA because U-slot tunes the higher order orthogonal mode resonance frequency of the patch with respect to fundamental mode to realize the wider bandwidth. The maximum bandwidth of 80MHz is achieved with the use of PDMS. The antenna is simulated using HFSS software.

Adjustable Slot Cutting Guide for Improved Accuracy During Bone Resection in Total Knee Arthroplasty

2013 ◽  
Vol 7 (4) ◽  
Author(s):  
Thomas P. James ◽  
Owen P. McGonigle ◽  
Imran S. Hasan ◽  
Eric L. Smith
Keyword(s):  
Computer Navigation ◽  
Cutting Plane ◽  
Bone Resection ◽  
Cutting Guide ◽  
Blade Thickness ◽  
Flexion Extension ◽  
Cutting Error ◽  
Cutting Guides ◽  
Total Knee ◽  
Slot Cutting

Slotted cutting guides are used by orthopaedic surgeons to improve the accuracy of bone resection during total knee replacement. Accuracy of the saw cuts has an effect on patient mobility and on implant survival time. While computer navigation systems have improved the accuracy of cutting guide placement, the contribution to cutting error from blade toggle within the slots of the cutting guide persists. In this research, equations were derived to quantify angular cutting error based on the parameters affecting blade and cutting guide geometry. Analytically, the relationship between cutting plane error and blade thickness was determined to be linear. A smaller gap, due to thicker blades with minimal tooth offset, results in less cutting error. From an experimental standpoint, six commercially available cutting guides were tested for femoral plane cutting accuracy by resection of synthetic bone under the guidance of computer navigation. The results indicate an average flexion/extension error of 3.8 deg for a 0.89 mm thick blade and 2.0 deg for a 1.27 mm blade. Varus/valgus error due to twisting of the blade within the slot was less than 1.0 deg, regardless of blade thickness. To improve upon cutting accuracy, an adjustable slot cutting guide was designed and tested. From more closely matching slot width to blade thickness, the results indicate that cutting plane error can be reduced to less than 1.0 deg in both the flexion/extension and varus/valgus planes.

scholarly journals Analysis on Efficiency of Slot-Cutting Around RC Frame Joint for “Strong Column and Weak Beam” Engineering Design

2012 ◽  
Vol 3 ◽  
pp. 381-390 ◽  
Author(s):  
Xingguo Wang ◽  
Mingyue Shan ◽  
Youpo Su ◽  
Nan Ge ◽  
Haibin Chen
Keyword(s):  
Engineering Design ◽  
Rc Frame ◽  
Weak Beam ◽  
Slot Cutting
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