Tests for the Optimization of Cut-Off Parameters for Seven Galician Granite Varieties

2013 ◽  
Vol 548 ◽  
pp. 82-89
Author(s):  
Maria Araújo Fernández ◽  
Javier Taboada Castro ◽  
Jose Antonio Vilán Vilán ◽  
Nuria Sánchez Delgado
Keyword(s):  
Cutting Speed ◽  
Direct Consequence ◽  
Cutting Parameters ◽  
Extraction Methods ◽  
Graphical Analysis ◽  
Cutting Efficiency ◽  
Optimum Configuration ◽  
Circular Saw ◽  
Diamond Saw ◽  
Saw Blade

The ornamental rock sector in Galicia (NW Spain), in particular the granite extraction and processing sector, has undergone tremendous development in recent years as a direct consequence of the use of non-aggressive rock mass extraction methods and the progressive modernization and automation of the different processes for processing and finishing the slabs, as well as the improvement of in-plant logistics. Nevertheless, it has been ascertained that cutting parameters entered as setpoint values in the diamond circular saws, used for the subdivision of slabs of the different commercial granite varieties, do not fit clear technical criteria for the optimization of cutting efficiency, but are selected and pre-set based on the experience of the circular saw operator. In order to evaluate the validity of thus selected cutting parameters and to provide the sector with a more objective tool, the cutting performance of seven granite varieties from Galicia which have high sales was analysed. Thus, each available slab was subdivided using four different cutting settings resulting from modifying two of the parameters which most affect cutting efficiency: cutting speed (m/min) and cutting depth (mm). These parameters, in turn, have an influence on power consumption (kWh), diamond saw blade wear (mm) and average production (mm2/min). Thereby, an exhaustive data acquisition process was carried out in order to create a complete database with the representative information of the cutting of each of the seven tested varieties and determine the optimum configuration for cutting each material, based on the results of a graphical analysis of the mean of data and the analysis of the variance (ANOVA).

Dry-Cutting Concrete Study of Diamond Saw Blade with Different Segment Width

2006 ◽  
Vol 532-533 ◽  
pp. 321-324 ◽  
Author(s):  
Shan Shan Hu ◽  
Cheng Yong Wang ◽  
Bang Dao Chen ◽  
Ying Ning Hu
Keyword(s):  
Cutting Parameters ◽  
Structure Parameters ◽  
Optimum Structure ◽  
Dry Cutting ◽  
Workpiece Material ◽  
Sawing Force ◽  
Circular Saw ◽  
Circular Saw Blade ◽  
Diamond Saw ◽  
Saw Blade

Three kind of diamond circular saw blade with different structure parameters are designed in this paper. Adopted single-factor test, sawing force and vibration are measured by cutting several kinds of strength concrete in different cutting parameters. The analysis to characters of sawing force and vibration helps to find out optimum structure of diamond saw blade with different segment width, more rational sawing parameter and its adaptability to workpiece material.

Frequency Reliability Analysis of Diamond Circular Saw Blade

2013 ◽  
Vol 380-384 ◽  
pp. 128-131
Author(s):  
Zhe Yuan ◽  
Zi Fang Qin ◽  
Rui Yuan Cao ◽  
Li Li Song
Keyword(s):  
Finite Element ◽  
Reliability Analysis ◽  
Structural Reliability ◽  
Impact Factors ◽  
Sensitivity Index ◽  
Element Analysis ◽  
Finite Element Software ◽  
Circular Saw ◽  
Diamond Saw ◽  
Saw Blade

To improve the performance of diamond saw blade sawing, reduce vibration at the time of its work, prevent the blade resonance, the parametric model of diamond saw blade was been established based on the finite element software ANSYS, and the analysis file was been established through the structural reliability analysis module of the finite element analysis software ANSYS. The finite element method combined with the Monte Carlo method can be used to get the sensitivity index which effect the diamond saw blade security and the probability distribution function and the other principal impact factors, and which is theoretical basis for the diamond saw blade optimization and design.

scholarly journals Analysis of cutting conditions in the process of cross-cutting wood by circular saws

BioResources ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 1029-1041
Author(s):  
Ján Kováč ◽  
Pavol Harvánek ◽  
Jozef Krilek ◽  
Tomáš Kuvik ◽  
Ján Melicherčík
Keyword(s):  
Wood Species ◽  
High Speed ◽  
Cutting Speed ◽  
High Speed Steel ◽  
Rake Angle ◽  
Cutting Conditions ◽  
Sintered Carbide ◽  
Circular Saw ◽  
Saw Blade ◽  
Circular Saws

An analysis was conducted of the effects of cutting conditions in the cross-cutting of wood using circular saws. Gradual wear of the saw blade cutting wedges impacted the entire cutting process. Two different types of circular saw blades were used. One blade type featured sintered carbide tips and 54 saw blade teeth, whereas the other had high-speed steel with 56 teeth; both saw-blades were 600 mm in diameter with a rake angle of 20°. The two wood species were spruce (Picea abies) and beech (Fagus sylvatica). During sawing, the timber was fed at a velocity of vf = 6 and 12 m·min-1. The cutting speed (vc) was set at 60 m·s-1, 70 m·s-1 and 80 m·s-1. The saw blades were coated with three types of PVD coatings. The least energy intensive saw blade was a sintered carbide-free saw blade with a coating (AlTiN) at a displacement speed of 12 m·min-1 and cutting speed of 60 m·s-1 with a power of 1310,63 W. Any change of a saw blade considerably affected torque for all the wood species, so a particular type of saw blade will always have an impact on torque. Other parameters distinctively and individually influenced the process of wood sawing.

Effect of thermal modification temperature of spruce wood on cutting parameters during circular saw blade cutting

2021 ◽  
Vol 113 ◽  
pp. 30-35
Author(s):  
LUĎKA HLÁSKOVÁ ◽  
ZDENĚK KOPECKÝ ◽  
VÍT NOVÁK
Keyword(s):  
Cutting Force ◽  
Cutting Parameters ◽  
Cutting Resistance ◽  
Circular Saw ◽  
Spruce Wood ◽  
Heat Treated ◽  
Circular Saw Blade ◽  
Blade Cutting ◽  
Saw Blade ◽  
Increasing Temperature

Effect of thermal modification temperature of spruce wood on cutting parameters during circular saw blade cutting. The work examines the effect of temperature on energetical parameters (specific cutting resistance and cutting force) when cutting heat-treated wood of Norway spruce (Picea Abies) by a circular saw. The test samples were heat-treated at 160°C, 180°C, 200°C and 220°C. One sample was not heat treated and was used as a reference sample. In comparison with the theoretical assumptions, the influence of temperature on the cutting force and specific cutting resistance was confirmed. With increasing temperature of modification, the specific cutting resistance and cutting force decreased. The reduction of value of cutting force is related to changes in the chemical structure of the wood components, weight and density loss due to the increasing temperature of modification.

Noise Analysis of Diamond Saw Blade

2015 ◽  
Vol 1095 ◽  
pp. 773-776
Author(s):  
Min Zhao ◽  
Lin Zhang ◽  
Bei Ming Tang ◽  
Kattan Maher
Keyword(s):  
Working Condition ◽  
Noise Analysis ◽  
Experimental Results ◽  
Circular Saw ◽  
Cutting Machine ◽  
Different Types ◽  
Diamond Saw ◽  
Saw Blade

In this paper, noise of diamond circular saw blades has been measured, five different types of saw blades are used to measure their noise under different working condition. By analyzing of the experimental results, the effect of different factors on the saw blade noise is studied. The result shows that the increasing the speed of cutting machine or the diameter of blade, noise will become larger. The noise of saw blade with a hole or water slot would be greater than others without any hole or water slot.

Linear Sawing Apparatus and its Evaluation for Research Into High Speed Bone Sawing

2011 ◽  
Author(s):  
John J. Pearlman ◽  
Anil Saigal ◽  
Thomas P. James
Keyword(s):  
High Speed ◽  
Metal Cutting ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Edge ◽  
Material Behavior ◽  
Depth Of Cut ◽  
Cutting Edge Radius ◽  
Edge Radius ◽  
Saw Blade

Previous research into the cutting mechanics of bone sawing has been primarily approached from the perspective of orthogonal metal machining with a single edge cutting tool. This was a natural progression from the larger body of knowledge on the mechanics of metal cutting. However, there are significant differences between typical orthogonal metal cutting parameters and those encountered in bone sawing, such as anisotropic material behavior, depth of cut on the order of cutting edge radius, chip formation mechanism in the context of a saw blade kerf, non-orthogonal considerations of set saw blade teeth, and cutting speed to name a few. In the present study, an attempt is made to overcome these shortcomings by employing a unique sawing fixture, developed to establish cutting speeds equivalent to those of typical sagittal saws used in orthopaedic procedures. The apparatus was developed for research into bone sawing mechanics and is not intended to be a commercial sawing machine. The sawing fixture incorporates the cutting speed possible with lathe operations, as well as the linear cutting capabilities of a milling machine. Depths of cut are on the same order of magnitude as the cutting edge radius typical to saw blade teeth. Initial measurements of cutting and thrust force, obtained with this new experimental equipment, are compared to previous work.

Study on the damage of coal and rock with diamond saw blade cutting based on LS-DYNA

2017 ◽  
Vol 06 (04) ◽  
pp. 1750026 ◽  
Author(s):  
Qingliang Zeng ◽  
Zhiwen Wang ◽  
Lirong Wan ◽  
Xin Zhang ◽  
Zhenguo Lu
Keyword(s):  
Cutting Force ◽  
Axial Force ◽  
Rotational Speed ◽  
Cutting Speed ◽  
Rock Damage ◽  
Coal Rock ◽  
Diamond Saw ◽  
Saw Blade ◽  
Diamond Saw Blades ◽  
Cutting Speeds

To solve the problem of coal-rock damage during cutting coal and rock by diamond saw blade — the LS-DYNA diamond saw blade — coal and rock finite element model is established. According to the fracture mechanism of brittle materials, by studying a single diamond saw blade with different cutting speeds and revolution speeds along with double diamond saw blades with different spacing, cutting speeds and cutting speeds of coal-rock damage, axial force and force change, the numerical simulation resultant demonstrated the axial force, cutting force and rock damage decrease significantly with an increase in rotational speed. The force and damage increase with an increase in the cutting speed and a decrease in the distance of the diamond saw blade. The axial force linearly increases with rotational speed and cutting speed. The cutting force exponentially decreases with increasing rotational speed, and it increases with increasing feeding speed. The forces decrease linearly with the increasing distance of the diamond saw blades. The damage degree of rock increases as the distance and rotational speed increase, and it decreases as the cutting speed increases.

Dynamic Analysis of Metal Circular Saw Blade

2014 ◽  
Vol 496-500 ◽  
pp. 222-226 ◽  
Author(s):  
Xin Tan ◽  
Hu Huang ◽  
Lin Chen ◽  
Qing Bin Zhang
Keyword(s):  
Finite Element ◽  
Cutting Parameters ◽  
Element Analysis ◽  
Circular Saw ◽  
Circular Saw Blade ◽  
Stress And Deformation ◽  
Dynamics Calculation ◽  
Saw Blade ◽  
Sawing Process

During the sawing process of cold sawing machine, it emergences of blade wear too fast, the current is too large, sawing not high quality of rolled products,Be aimed at those problem, the paper established the finite element of side shake structure saw blade and ordinary flat blade model, and using the ANSYS finite element analysis software to make the dynamics calculation about the two kinds of saw blade. Through the analysis and comparison of backlash saw blade and natural frequency, different cutting parameters effect of stress and deformation of the saw tooth transient, and the simulation results will be applied to the field of sawing testsThe results show that the backlash saw blade in the vibration characteristics, performance and other aspects of the force and deformation are improved compared with the ordinary blade

Dynamic Characteristics Analysis of Diamond Saw Blade with Multi-Hole Base and Different Segment Width

2008 ◽  
Vol 375-376 ◽  
pp. 369-374 ◽  
Author(s):  
Ying Ning Hu ◽  
Cheng Yong Wang ◽  
Shan Shan Hu ◽  
Bang Dao Chen ◽  
Chang Xiong Chen
Keyword(s):  
Acoustic Emission ◽  
Cutting Parameters ◽  
Distribution Analysis ◽  
Workpiece Material ◽  
Emission Signal ◽  
Sawing Force ◽  
Characteristics Analysis ◽  
Nature Frequency ◽  
Diamond Saw ◽  
Saw Blade

By FEM module analysis and temperature distribution analysis of diamond saw blade with multi-holes base and different segment width, influence of different hole diameter, hole number and segment width to nature frequency is clear. Adopted single-factor test, sawing force and acoustic emission signal are measured by cutting several kinds of strength concrete in different cutting parameters. The analysis to characters of sawing force and acoustic emission helps to find out optimum structure of diamond saw blade with different segment width, more rational sawing parameter and its adaptability to workpiece material.

Study on Parameter Optimization and Tool Wear of Milling Compacted Graphite Iron RuT450 Cylinder Block

2018 ◽  
Vol 764 ◽  
pp. 351-360
Author(s):  
L. Chen ◽  
L. Liu ◽  
H. Guo ◽  
C.W. Li ◽  
X.K. Yang ◽  
...  
Keyword(s):  
Cutting Speed ◽  
Cutting Parameters ◽  
Parameters Optimization ◽  
Cylinder Block ◽  
Compacted Graphite Iron ◽  
Cutting Efficiency ◽  
Compacted Graphite ◽  
Feed Force ◽  
Cutting Parameters Optimization ◽  
Spindle Power

In order to study the milling process of compacted graphite iron cylinder block in practical, cutting parameters optimization experiment was conducted when cutting parameters were set as independent variable, and cutting efficiency and spindle power were set as optimization objective. The results showed that spindle power increased as the cutting speed and feed per tooth increasing, but cutting torque increased initially and then decreased as the cutting speed increasing. Feed force decreased with the increasing cutting speed and decreasing feed per teeth. Matlab software was used to optimize the cutting parameters when cutting efficiency and empirical formula of spindle power were settled as the objective functions. The most suitable parameters were abtained as V=164m/min and fz=0.28mm/z. The tool rake face mainly took place crater wear and material sticking. The main wear mechanisms for rake wear and fland wear were abrasive wear and adhesion wear.

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