Design of the Precision Detection Device for the Key Dimension of Bending Mold

2011 ◽  
Vol 52-54 ◽  
pp. 84-90
Author(s):  
Ji Bin Tong ◽  
Hui Yuan ◽  
Yong Ming Wang ◽  
Xiao Liu Yu
Keyword(s):  
High Accuracy ◽  
Rapid Response ◽  
Cutting Edge ◽  
Good Stability ◽  
Edge Angle ◽  
In Series ◽  
Rotational Freedom

The key to guarantee bending mold interchangeability is the precise detection of the cutting edge angle, symmetry and the distance from its center to the fitting surface of CNC bending mold. According to the features of the Key Dimension of the Bending Mold (KDBM), it is detected using a 3-DOF mechanical arm connected in series. The mechanical arm has a horizontal DOF, a vertical DOF, and a rotational freedom of the gauge head which is placed at the end of the mechanical arm. The Precision Detection Device (PDD) for KDBM that we have designed has high accuracy, good stability and rapid response.

scholarly journals Optimization of Boring Process Parameters in Manufacturing of Polyacetal Bushing using High Speed Steel

2019 ◽  
Vol 130 ◽  
pp. 01031 ◽  
Author(s):  
The Jaya Suteja ◽  
Yon Haryono ◽  
Andri Harianto ◽  
Esti Rinawiyanti
Keyword(s):  
Surface Roughness ◽  
Process Parameters ◽  
Feed Rate ◽  
High Speed ◽  
Removal Rate ◽  
High Speed Steel ◽  
Cutting Edge ◽  
Depth Of Cut ◽  
Optimum Result ◽  
Edge Angle

Polyacetal is commonly used as bushing material because of its low coefficient of friction and self lubricant characteristics. The polyacetal is machined by using boring process to produce bushing in certain surface roughness. The objectives of this research are to optimize three independent parameters (depth of cut, feed rate and principal cutting edge angle) of boring process of polyacetal using high speed steel tool to achieve the highest material removal rate and the required surface roughness. Response Surface Methodology is used to investigate the influence of the parameters and optimize the boring process. The research shows that the influence of the boring process parameters on polyacetal is similar compared to on metal. The result reveals that the optimum result is achieved by applying the value of depth of cut, feed rate, and principal cutting edge angle is 2.9 × 10–3 m, 0.229 mm rev–1, and 99.1° respectively. By applying these values, the maximum material rate removal achieved in this research is 1263.4 mm3 s–1 and the surface roughness achieved is 1.57 × 10–6 m.

The Effect of Cut Tool Geometric Parameters on Tool Tear of Machining Nickel-Base GH4169 Super Alloys

2010 ◽  
Vol 37-38 ◽  
pp. 1457-1461 ◽  
Author(s):  
Zhao Peng Hao ◽  
D. Gao ◽  
R.D. Han
Keyword(s):  
Tool Life ◽  
Cutting Speed ◽  
High Strength ◽  
Rake Angle ◽  
Geometric Parameters ◽  
Cutting Edge ◽  
Factors Affecting ◽  
Edge Angle ◽  
Coated Tools ◽  
Nickel Base

Nickel-based super alloy GH4169 has been widely used in aerospace industry because of its good mechanical properties under high temperature. However, it is difficult to machine for its high strength, poor thermal conductivity and serious work-hardening. The effects of tool geometric parameters on tool life are studied by machining experiments using YG8 tools with different cutting edge angle in this paper. The tool with cutting edge angle 45°has longer tool life than 75°. The cutting experiments have been carried out using TiAlN (PVD) coated tools (AC520U) with different rake angle. It shows that the tool life with rake angle 9° were increased by 50% and 25% compared to tool with rake angle 3°and 6° when cutting speed is 30m/min. The tool with rake angle 9° is not suitable for cutting GH4169 when cutting speed is more than 35m/min. The results show that geometric parameter of cutting tool is one of the important factors affecting tool life.

A New Method for Copper Spherical Surface Lathing with High Speed Steel Cutting Tool

2015 ◽  
Vol 667 ◽  
pp. 3-8
Author(s):  
Ze Fei Chen ◽  
Lang Zhang
Keyword(s):  
Surface Roughness ◽  
Cylindrical Surface ◽  
Cutting Tool ◽  
Spherical Surface ◽  
Cutting Edge ◽  
Good Effect ◽  
Cutting Depth ◽  
Edge Angle ◽  
Cutting Path ◽  
Cutting Point

On the basis of uneven copper surface roughness during lathering in common CNC lather, analyze the cutting ways of copper spherical surface and the cutting layer different from cylindrical surface lathing. The cutting direction of cylindrical surface lathing is constant, and its cutting layer is too. However, the direction of spherical surface lathing varies along the tangent of its cutting point continually, and the working cutting edge angle and the working minor cutting edge angle of the cutting tool vary too, so the theoretical surface roughness is affected. The cutting layer of spherical surface lathing varies continually, so does the cutting depth of its every cutting point. Through analysis and experiments, prove that cutting force variety is caused by the gradient variety of cutting depth, which leads to increase of the surface rough and its unevenness. Based on the research result, design some new cutting path to improve the surface roughness of copper spherical surface lathing, and obtain good effect.

Regenerative Chatter Vibration Occurring in Turning With Different Side Cutting Edge Angles

1995 ◽  
Vol 117 (4) ◽  
pp. 551-558 ◽  
Author(s):  
E. Marui ◽  
M. Hashimoto ◽  
S. Kato
Keyword(s):  
Energy Supply ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Cutting Edge ◽  
The Other ◽  
Chatter Vibration ◽  
Regenerative Chatter ◽  
Edge Angle ◽  
Regenerative Effect ◽  
Two Factors

This paper deals with the regenerative chatter vibration occurring in cutting tools with different side cutting edge angles. The occurrence of regenerative chatter vibration of the cutting tool is influenced by two factors, which are closely related to the vibratory energy supply or consumption. One factor is the interference effect between the tool flank and the workpiece. Of course, this factor exists in the primary chatter, too. The other is the regenerative effect. The influence of both factors on the regenerative chatter vibration of cutting tools with different side cutting edge angles is examined experimentally. The vibratory energy supply is simulated, considering the dynamic cutting process. As a result, the property of the regenerative chatter vibration and the influence of the side cutting edge angle on the regenerative chatter vibration are clarified.

Design of Digital Filter Based on DSP

2013 ◽  
Vol 739 ◽  
pp. 624-627
Author(s):  
Juan He ◽  
Fei Qiao Xiong
Keyword(s):  
Digital Filter ◽  
High Accuracy ◽  
Good Stability ◽  
Data Input ◽  
Modulation Signal

A digital filter based on DSP is designed in this paper, which is achieved through using linear buffer and shift double operation addressing. At the same time, FTSK data input through using CCS5000 simulation and the FTSK modulation signal is processed to output the desired waveform and spectrum. Experiments show that it has characters of high accuracy, good stability, easy transplantation, strong practicality and flexibility.

Efficient and Effective Duplicate Detection in Hierarchical Data

2020 ◽  
Vol 17 (8) ◽  
pp. 3548-3552
Author(s):  
M. S. Roobini ◽  
P. B. S. Sumanth Kumar ◽  
P. B. Raviteja Reddy ◽  
Anitha Ponraj ◽  
J. Aruna
Keyword(s):  
High Accuracy ◽  
Cutting Edge ◽  
Hierarchical Data ◽  
Copy Detection ◽  
Bayesian Algorithm ◽  
Social Data ◽  
Xml Data ◽  
Duplicate Detection ◽  
Novel Technique

Although there is a long profession on distinguishing duplicates, just a handful in social data arrangements center around copy detection in ever more complex progressive systems, including XML data. Right now, present a novel technique for XML duplicate discovery, Renamed XMLDup. XMLDup utilizes a Bayesian algorithm defining the chance of duplicating two XML components, taking into account the data within the components, but also how data is structured. Likewise, to improve the effectiveness of Unit Review, Novel technique for pruning, equipped for noteworthy increases over the un-streamlined calculation rule, is introduced. We demonstrate through trials that our estimate is can accomplish high accuracy via trials we show our estimation is outflanking another cutting-edge duplicate discovery arrangement, both as far as proficiency and of adequacy.

Edge Design for Regrinding Cutting Tool

2011 ◽  
Vol 101-102 ◽  
pp. 938-941
Author(s):  
Xin Li Tian ◽  
Hao Wang ◽  
Xiu Jian Tang ◽  
Zhao Li ◽  
Ai Bing Yu
Keyword(s):  
Cutting Tool ◽  
Cutting Tools ◽  
Cutting Temperature ◽  
Cutting Edge ◽  
Edge Angle ◽  
Edge Radius ◽  
Tool Edge ◽  
Edge Defects ◽  
Tool Cutting ◽  
Edge Preparation

Regrinding of wasted cutting tools can recycle resources and decrease manufacturing costs. Influence of relative tool sharpness and tool cutting edge angle on tool edge radius were analyzed. Cutting force and cutting temperature were simulated with FEM on different edge radius. Edge preparation experiments were carried out though an abrasive nylon brushing method. The results show that RTS and cutting edge angle have influence on edge radius. Small edge radius might result in small cutting forces and lower average temperatures, could maintain the cutting state between tool and workpiece. The cutting edge defects can be eliminated through edge preparation, and a smooth cutting edge can be obtained. Cutting tool life will be improved through proper edge design and edge preparation.

Influence of the main cutting edge angle value on minimum uncut chip thickness during turning of C45 steel

2020 ◽  
Vol 57 ◽  
pp. 354-362 ◽  
Author(s):  
Tadeusz Mikołajczyk ◽  
Hubert Latos ◽  
Danil Yu. Pimenov ◽  
Tomasz Paczkowski ◽  
Munish Kumar Gupta ◽  
...  
Keyword(s):  
Chip Thickness ◽  
Cutting Edge ◽  
Uncut Chip Thickness ◽  
Edge Angle ◽  
Minimum Uncut Chip Thickness
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