Tool Life Analysis and Forecasting: 1. Statistical Analysis

1993 ◽  
Author(s):  
Jack P. Manata
Keyword(s):  
Statistical Analysis ◽  
Tool Life ◽  
Life Analysis

Effect of Stiffness on Tool Wear and New Tool Life Equation

1975 ◽  
Vol 97 (3) ◽  
pp. 939-944 ◽  
Author(s):  
E. Kuljanic´
Keyword(s):  
Statistical Analysis ◽  
Tool Life ◽  
Dynamic Stiffness ◽  
Cutting Speed ◽  
Testing Method ◽  
Number Of Teeth ◽  
Pulse Testing ◽  
Machining System ◽  
Cutting Speeds ◽  
Significant Factors

An investigation of the effect of stiffness of the machining system on tool life with different numbers of teeth in the cutter, cutting speeds, and feeds is described. A statistical analysis was used and the effects of significant factors and interactions were determined. Not only the cutting speed, feed, and number of teeth in the cutter, but also the stiffness and their interactions have a significant effect on tool life. Due to a significant effect of interactions, the effect of the stiffness of machining system depends on the number of teeth in the cutter, cutting speed and feed. A new tool life equation was developed to take this phenomenon in account. The tool life decreases with increasing the number of teeth in the cutter. The static and dynamic stiffness was measured by means of a pulse-testing method which is both simple and reliable in determining the dynamic characteristics of a machining system.

Fatigue in cold-forging dies: tool life analysis

1999 ◽  
Vol 95 (1-3) ◽  
pp. 40-48 ◽  
Author(s):  
Peder Skov-Hansen ◽  
Niels Bay ◽  
Jens Grønbæk ◽  
Povl Brøndsted
Keyword(s):  
Tool Life ◽  
Cold Forging ◽  
Life Analysis

Cutting Tool Life Analysis in Heat-Pipe Assisted Drilling Operations

2015 ◽  
Vol 137 (1) ◽  
Author(s):  
Lin Zhu ◽  
Tien-Chien Jen ◽  
Yong-Bing Liu ◽  
Jie-Wen Zhao ◽  
Wei-Lai Liu ◽  
...  
Keyword(s):  
Heat Pipe ◽  
Thermal Management ◽  
Tool Life ◽  
Manufacturing Industry ◽  
Drilling Fluid ◽  
Life Extension ◽  
Cooling Conditions ◽  
Drilling Operations ◽  
Life Analysis ◽  
Fluid Cooling

This paper further focuses on the feasibility and effectiveness of heat-pipe cooling in drilling operations based on our previously related work. To achieve this, the authors used a combination of numerical analyses and experimental measurements for drilling in three different cooling conditions, i.e., dry drilling, fluid cooling, and heat-pipe cooling. The evidences obtained from the experimental study and finite element analyses were compared. The results strongly demonstrate that heat-pipe assisted cooling in drilling processes can effectively perform thermal management comparable to the fluid cooling used pervasively in the manufacturing industry, consequently offering the tool life extension.

Dynamic speed control of a machine tool with stochastic tool life: analysis and simulation

2013 ◽  
Vol 25 (5) ◽  
pp. 1153-1166 ◽  
Author(s):  
Bernard F. Lamond ◽  
Manbir S. Sodhi ◽  
Martin Noël ◽  
Ousman A. Assani
Keyword(s):  
Machine Tool ◽  
Tool Life ◽  
Speed Control ◽  
Life Analysis

scholarly journals Influence of Cutting Environment on Tool Life

2016 ◽  
Vol 24 (38) ◽  
pp. 9-15
Author(s):  
Eva Buranská ◽  
Kristína Gerulová ◽  
Ivan Buranský
Keyword(s):  
Statistical Analysis ◽  
Carbon Steel ◽  
Adverse Effects ◽  
Tool Life ◽  
Cutting Speed ◽  
Target Function ◽  
Cutting Fluid ◽  
Drilling Process ◽  
Multicriteria Optimisation ◽  
Fluid Concentration

Abstract The issues of cutting environment and a suitable choice of cutting conditions by drilling are the main subjects of the article. Attention is paid to the application of the drilling process into the carbon steel. Analysed were the phenomena that adversely affect the tool life. The article demonstrated solutions how to remove these adverse effects. The multicriteria optimisation of input factors (cutting fluid concentration, cutting speed) for a defined target function (tool life) was applied. The measured values were subjected to mathematical–statistical analysis (ANOVA). Based on the implemented experiment and study of this issue, we determined the combinations of input factors, which achieved minimal values of target functions. Based on the implemented experiment and study of this issue, we also determined the combinations of input factors, which achieved minimal values of target functions. Based on this allegation, the most appropriate combination of the following input factors was proved: concentration 6.3 % and cutting speed 100 m/min.

Modal Analysis as the Base of Dynamic Analysis

2015 ◽  
Vol 798 ◽  
pp. 148-152
Author(s):  
Katarina Monkova ◽  
Peter Monka ◽  
Andrea Cizikova ◽  
Filip Murgas ◽  
Jan Rehor ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Modal Analysis ◽  
Numerical Method ◽  
Tool Life ◽  
Cutting Tool ◽  
Natural Frequencies ◽  
Mode Shapes ◽  
Experimental Measurements ◽  
Life Analysis ◽  
Fixed Beam

The article deals with the modal analysis as a tool for specification of natural frequencies and the mode shapes of the turning tool. This type of analysis is the first step that is necessary to do at the dynamic analysis of technical components. At the beginning, the verification of numerical method was realized in laboratory conditions, where the fixed beam substituted the turning tool. Vibrodiagnostics of the real cutting tool in the workshop and the modal analysis using FEM in the software PTC Creo followed. It can be said that the results of the numerical method based on FEM were comparable with the data achieved by means of experimental measurements. The work described in this paper can be considered as a foundation for the dynamic tool life analysis.

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