scholarly journals Effect of Stem Diameter, Moisture Content and Cutting Speed on Cutting Force for Groundnut Harvesting.

2021 ◽  
Vol 108 (september) ◽  
Author(s):  
Preethi R ◽  
◽  
Saravanakumar M ◽  
Kamaraj P ◽  
Vallal Kannan S ◽  
...  
Keyword(s):  
Moisture Content ◽  
Cutting Force ◽  
Cutting Speed ◽  
Stem Diameter ◽  
Test Rig ◽  
Force Requirement ◽  
Bar Test

To design,and develop harvesting machines, the most important optimized parameter is the cutting force.The study was conducted to investigate the effect of stem diameter, moisture content, and cutting speed on the cutting force required for cutting groundnut stalks. The cutting force was measured using the reciprocating cutter bar test rig. Experiments were carried out at three levels of moisture content (40 - 47, 47 – 53, and 53 – 60 %) (wet basis), three levels of crop stem diameter (15- 17, 17 – 19, and 19- 21 mm) and three levels of cutter bar speed (0.80 – 0.90, 0.90 – 1.00 and 1.00 – 1.10 ms-1). The cutting force required for cutting groundnut crop stem was calculated for all the treatments. It was observed that increase in stem diameter, the cutting force increased by 19.83 % and increase in moisture content and cutter bar speed,the cutting force decreased by 37.57 %, and 34.11 %, respectively. The required cutting force (100 - 120 N) and energy (1.5 - 2.0J) was minimum at the cutter bar speed of 1.00 - 1.10ms-1 for 53 – 60 % moisture content, 15 - 17 mm stem diameter and they were maximum at cutter bar speed of 0.80 – 0.90 ms-1 (140- 160 N and 2.5 – 3.0 J)for 40 – 47 % moisture content, 19 – 21 mm stem diameter. The results showed that the cutting force requirement was increased with an increase in stem diameter and decreased with an increase in moisture content and cutting speed.

scholarly journals Influence of the moisture content and speed on the cutting force and energy of tannia cormels

2021 ◽  
Author(s):  
Babatunde Olayinka Oyefeso ◽  
Akintunde Akintola ◽  
Monisola Grace Afolabi ◽  
Clement Adesoji Ogunlade ◽  
Oluwaseyi Kayode Fadele ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Moisture Content ◽  
Cutting Force ◽  
Cutting Forces ◽  
Regression Models ◽  
Cutting Speed ◽  
Independent Variables ◽  
Moisture Contents ◽  
Optimum Cutting ◽  
Cutting Speeds

This study investigated the influence of the moisture content and speed on the cutting force and energy of tannia cormels using the response surface methodology (RSM). The moisture content and cutting speed were varied over five levels each [95.79, 113.68, 136.68, 168.42, 242.11% moisture content (dry basis) and 10, 15, 20, 25, 30 mm×min<sup>–1</sup>, respectively]. The highest and lowest cutting forces were 114.09 and 63.99 N at the corresponding moisture contents of 168.42 and 113.68% and at cutting speeds of 10 and 20 mm×min<sup>–1</sup>, respectively. The highest and lowest cutting energies of 0.92 and 0.49 J were both obtained at a 136.68% moisture content, at the 10 and 20 mm×min<sup>–1</sup> cutting speeds, respectively. The regression models for predicting the cutting force and energy as a function of the cutting speed and moisture content showed that there was no linear relationship between the investigated properties and the independent variables considered which could be attributed to the non-homogeneous nature of tannia cormels. The optimum cutting force and energy were 72.89 N and 0.60 J, respectively, at a 95.79% moisture content and a 22.33 mm×min<sup>–1 </sup>speed with a desirability of 0.80. These findings could serve as a guide for the development of chipping and cutting machines for tannia cormels.

scholarly journals Physical and Mechanical Properties of Kenaf (Hibiscus cannabinus L.) Stems at Varying Moisture Contents

2020 ◽  
pp. 6-10
Author(s):  
S. A. Fagbemi
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Cutting Force ◽  
Young’S Modulus ◽  
Plant Height ◽  
Physical And Mechanical Properties ◽  
Hibiscus Cannabinus ◽  
Stem Diameter ◽  
Moisture Contents ◽  
Shearing Energy

The physical and mechanical properties of Nigerian variety Kenaf stems Ibadan Local were studied. Plant height was ranged from 224 cm to 327 cm and maximum stem diameter was ranged from 15 mm to 50 mm. The mechanical properties revealed that maximum cutting force and shearing energy were 1778.62 N and 10.20 J, respectively for 37% moisture content while it was 742.67 N and 3.74 J for 77% moisture content. The Young’s modulus ranged from 60.04 – 266.80 MPa. The greater shearing energy was obtained at the base of the stem.

scholarly journals Investigation on Effect of Stroke Length, Cutter Bar Speed, Moisture Content of Crop and Stem Diameter on Cutting Force for Development of Bengal Gram Harvester

2020 ◽  
pp. 33-37
Author(s):  
S. Ramachandran ◽  
D. Asokan
Keyword(s):  
Moisture Content ◽  
Cutting Force ◽  
Tamil Nadu ◽  
Stem Diameter ◽  
Stroke Length ◽  
Cent Moisture ◽  
Bengal Gram ◽  
Before And After ◽  
Four Levels ◽  
Harvesting Stage

Aims: The effects of crop and machine parameters on cutting force for Bengal gram crop were investigated. Study Design: Experiments were carried out at two levels by using the standard protocol. Place: The study was carried out in the farm machinery work shop of Agricultural Engineering College & Research Institute, Kumulur, Trichy, Tamil Nadu, India. Methodology: A double knife cutter bar test rig was developed for measuring the cutting force required for harvesting of Bengal gram crop. Experiments were carried out on JG 11 variety of Bengal gram crop at two levels of stroke length of the double knife cutter bar, four levels of cutter bar speeds, three levels of stem diameter and three ranges of moisture content (at harvesting stage, at 5 days before and after harvesting). Results: The minimum cutting force of 16.14 N was observed at 1.0 ms-1 for cutting 3 to 4.5 mm diameter with 14.08 to 15.1 per cent moisture content of stem. The maximum value of cutting force of 39.83 N was observed at 0.25 m s-1 for cutting more than 6 mm diameter with 20.2 to 20.45 per cent moisture content of stem. The double knife cutter bar with a stroke length of 76.2 mm registered 4.3 to 11.12 percent reduction in cutting force as compared to 50 mm stroke length for the all selected levels of parameters.

scholarly journals Study of the behavior of sugarcane bagasse submitted to cutting

DYNA ◽  
2015 ◽  
Vol 82 (191) ◽  
pp. 171-175 ◽  
Author(s):  
Nelson Arzola ◽  
Joyner García
Keyword(s):  
Statistical Analysis ◽  
Moisture Content ◽  
Cutting Force ◽  
Sugarcane Bagasse ◽  
Cutting Speed ◽  
Response Surfaces ◽  
Specific Cutting Energy ◽  
Cutting Energy ◽  
Blade Edge ◽  
Pre Treatment

The aim of this work was to study the behavior of sugarcane bagasse submitted to cutting, as a function of its moisture content, angle of the blade edge and cutting speed. The specific cutting energy and peak cutting force were measured using an experimental facility developed for this series of experiments. An analysis of the results of the full factorial experimental design using a statistical analysis of variance (ANOVA) was performed. The response surfaces and empirical models for the specific cutting energy and peak cutting force were obtained using statistical analysis system software. Low angle of the blade edge and low moisture content are, in this order, the most important experimental factors in determining a low specific cutting energy and a low peak cutting force respectively. The best cutting conditions are achieved for an angle of blade edge of 20.8° and a moisture content of 10% w. b. The results of this work could contribute to the optimal design of sugarcane bagasse pre-treatment systems.

scholarly journals Cassava Stem Crop Parameters Effect on Cutting Energy

2020 ◽  
pp. 25-30
Author(s):  
K. Prasanthkumar ◽  
M. Saravanakumar
Keyword(s):  
Moisture Content ◽  
Stem Diameter ◽  
Stem Cutting ◽  
Average Moisture Content ◽  
Test Rig ◽  
Conservation Of Energy ◽  
Cutting Energy ◽  
Type Test ◽  
Cassava Stem ◽  
Crop Parameters

The study was conducted to understand the energy involves in cassava stem cutting in order to optimize design of cutting elements in cassava stem cutting. The cutting energy is measured using pendulum type test rig and it works under the principle of law of conservation of energy. The tests were conducted at 3 levels of average moisture content [43.75, 56.50 and 64% (wb)] and stem diameter (25.22, 28.71 and 33.29 mm) with 3 replications. The results revealed that the cutting energy was increased with increase in moisture content and stem diameter. The cutting energy of cassava stem increased by 23.26% when the average moisture content was increased from 43.75 to 64% and reduced by 17.31% when the stem diameter was increased from 25.22 to 33.29 mm.

Cutting Temperature and Cutting Forces Investigation Based on the Taguchi Design Method when High-Speed Milling of Titanium Matrix Composites with PCD Tool

2016 ◽  
Vol 836-837 ◽  
pp. 168-174 ◽  
Author(s):  
Ying Fei Ge ◽  
Hai Xiang Huan ◽  
Jiu Hua Xu
Keyword(s):  
Cutting Force ◽  
Feed Rate ◽  
Cutting Forces ◽  
High Speed ◽  
Volume Fraction ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
High Speed Milling ◽  
Radial Depth

High-speed milling tests were performed on vol. (5%-8%) TiCp/TC4 composite in the speed range of 50-250 m/min using PCD tools to nvestigate the cutting temperature and the cutting forces. The results showed that radial depth of cut and cutting speed were the two significant influences that affected the cutting forces based on the Taguchi prediction. Increasing radial depth of cut and feed rate will increase the cutting force while increasing cutting speed will decrease the cutting force. Cutting force increased less than 5% when the reinforcement volume fraction in the composites increased from 0% to 8%. Radial depth of cut was the only significant influence factor on the cutting temperature. Cutting temperature increased with the increasing radial depth of cut, feed rate or cutting speed. The cutting temperature for the titanium composites was 40-90 °C higher than that for the TC4 matrix. However, the cutting temperature decreased by 4% when the reinforcement's volume fraction increased from 5% to 8%.

An Experimental Study of Cutting Force on Large Cutting Depth Turning Titanium Alloy with CBN Tool

2014 ◽  
Vol 800-801 ◽  
pp. 237-240
Author(s):  
Li Fu Xu ◽  
Ze Liang Wang ◽  
Shu Tao Huang ◽  
Bao Lin Dai
Keyword(s):  
Experimental Study ◽  
Titanium Alloy ◽  
Cutting Force ◽  
Feed Rate ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Depth ◽  
Cbn Tool ◽  
Cutting Experiment ◽  
Rough Turning

In this paper, the cutting experiment was used to study the influence of various cutting parameters on cutting force when rough turning titanium alloy (TC4) with the whole CBN tool. The results indicate that among the cutting speed, feed rate and cutting depth, the influence of the cutting depth is the most significant on cutting force; the next is the feed rate and the cutting speed is at least.

scholarly journals Cutting Force Prediction Models by FEA and RSM When Machining X56 Steel with Single Diamond Grit

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 326
Author(s):  
Lan Zhang ◽  
Xianbin Sha ◽  
Ming Liu ◽  
Liquan Wang ◽  
Yongyin Pang
Keyword(s):  
Cutting Force ◽  
Coefficient Of Friction ◽  
High Speed ◽  
Prediction Models ◽  
Pipeline Steel ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
Cutting Force Prediction ◽  
Force Prediction ◽  
Diamond Wire Saw

In the field of underwater emergency maintenance, submarine pipeline cutting is generally performed by a diamond wire saw. The process, in essence, involves diamond grits distributed on the surface of the beads cutting X56 pipeline steel bit by bit at high speed. To find the effect of the different parameters (cutting speed, coefficient of friction and depth of cut) on cutting force, the finite element (FEA) method and response surface method (RSM) were adopted to obtain cutting force prediction models. The former was based on 64 simulations; the latter was designed according to DoE (Design of Experiments). Confirmation experiments were executed to validate the regression models. The results indicate that most of the prediction errors were within 10%, which were acceptable in engineering. Based on variance analyses of the RSM models, it could be concluded that the depth of the cut played the most important role in determining the cutting force and coefficient the of friction was less influential. Despite making little direct contribution to the cutting force, the cutting speed is not supposed to be high for reducing the coefficient of friction. The cutting force models are instructive in manufacturing the diamond beads by determining the protrusion height of the diamond grits and the future planning of the cutting parameters.

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