Access free live classes and tests on the app
Download
+
Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA
Login Join for Free
avtar
  • ProfileProfile
  • Settings Settings
  • Refer your friendsRefer your friends
  • Sign outSign out
  • Terms & conditions
  • •
  • Privacy policy
  • About
  • •
  • Careers
  • •
  • Blog

© 2023 Sorting Hat Technologies Pvt Ltd

Watch Free Classes
    • GATE 2024
    • GATE 2024 Question Papers
    • GATE Notes by Jaspal Singh
    • GATE Notes by S K Mondal
    • Downloads
    • GATE 2024 Rank Predictor
    • Notifications
    • MCQs
    • Question Bank
    • Video Lectures
    • Study Materials
    • PSU Recruitment
    • Difference Between
    • Full Forms
    • Exam Tips
    • GATE Books
GATE Exam » GATE Study Materials » Mechanical Engineering » Tool Life and Wear
Prepare for GATE & ESE

Tool Life and Wear

The Tool life is particularly described as a measurement of cutting the time, which is essentially used by the tool. Get more guidance about it here.

Table of Content
  •  

Natively, the Tool Life is the term of authentic cutting time; afterward, the tool is not usable for a long time. The word tool wear and life are usually described in multifarious ways. The ordinary manner of exaggerating the destiny of a tool is by a limitation on the ultimate sufficient side wear. On the other hand, tool wear is the incremental defeat of carving tools due to standard procedure.

Tools impacted contain tilted tools, drill bits, and tool bits. It’s all only used with appliance tools. There are various classifications of wear, such as flank wear, that have the part of this tool in connection with the completed function.The tool is most affected by the feed rate.

Tool Life Definition

The Tool first one-word T is, refers to the term of the time. Ordinarily, it is expressed in minutes, for which state-of-the-art, acted through the cutting process, etc. That all maintains its cutting capability amid sharpening procedures. Moreover, it describes the length of the cutting bit which the tool might be used for. 

Factors Impacting the Tool Life

These are the following factors that affect the tool life, it is followed:

  • Area of Cut
  • Cutting Speed
  • Essence of Cutting
  • Biological Consequences of Workpiece
  • The ratio of Feed to Depth of Cut (f/d)
  • Form and Inclinations of Tools
  • Impact of Lubricant

Apart from this, the Tool material and its various parameters are the actual situations that are most imperative to choosing the quality of particleboard surface. Therefore, as a result, it is influenced by trimming speed on the length of the tool.

The connection was displayed as diminishing in the life of the tool along with extending the cutting speed. 

Meaning of the Tool Wear

As per the stable machining requirements, the tool wear has an influential effect on surface roughness. According to Rao’s deconstruction, when a profundity of cut is more diminutive than the tool proboscis’s radius. The wear dimensions are defined as:

TW = 0.5× (flank wear + nose wear)

Apart from this, it expresses the incremental destruction of cutting-edge tools. It happens due to periodic machining operations. It is called progress wear. It has another, which is known as catastrophic tool wear.

Ordinally, progressive tool wear has two types one is crater wear and flank wear. Both are types made up of surfaces. The crater wear has a rake surface, and apart from this, the flank weak has a flank surface.

In addition, which also includes numerous wears like edge wear and Noche wear, etc. its all are included under it apart from this wear. 

Causes of Tool Wear

Following are the Tool wear causes which essentially occur due:

  • Vast localized pressures & tensions at the tip of the tool.
  • More High temperatures (specifically along rake face).
  • Keep Gliding the chip along the rake face.
  • Able to move smoothly of the tool along the recently cut workpiece consistency.

If you would like to comprehend “what is tool life?”.

If yes, it straightforward means that it is the most prominent element. The Tool is effectively used in the evaluation of machinability. In the duration of this period, the tool is cut very effortlessly and effectively. The process of this period has majorly affected with two successive alternates of tool and two consecutive grinding of the tool.

Apart from this, the tool is weak & life should have a too-long life of the tool. As a result, the value of the replacement and grinding is too high.

Although, the short tool life & wear will have to be uneconomical. Once in a while, several tools are not performing their job effectively and are not able to satisfy the desires. Then, as per condition, it is figured out that the tool is nearby at the end of its usual life.

These are the exhaustive signs which indicate that tools and weak life are coming to an end.

Tool Life is Measured By

The Tool life is measured by the exhaustive signs, which indicate that the tool and weak life is coming to an endpoint. 

  • Low surface finish, the existence of conversation imperfections on the workpiece, and size error.
  • Overheating and Resurgence of the workpiece. The tool interference occurs due to the contention issue.  
  • Decaying trimming edges. 
  • An impulsive huge use in power consumption.

So, you will have to use the tool material precisely. The Tool life is measured by these indicating signs very impeccably. 

Ordinally, tool life and tool wear will be influenced through numerous factors, it is mentioned below:

  • The properties of the tool and its material.
  • Needs of the finishing with the accurate tool material on the designed product. 
  • The Tool geometry also affects the tool wear and tool. It is the shape of the cutting tool. 
  • Machining requirements like the cutting liquid used and temperature.
  • Following Machining variables like Feast, cutting speed, and depth of a cut affect the tool. Moreover, the several kinds of machining processes- ongoing and sporadic cutting.

Conclusion 

Thus, the Tool is essential most vital to detect the gradual failure. It may occur due to periodically cutting tools failures, which happen via regular operations and processes. By following the sufficient way and after measuring it, you can easily settle out from the issue.

faq

Frequently asked questions

Get answers to the most common queries related to the GATE Examination Preparation.

What is the contribution of control volume in fluid flow?

Ans : A control-volume analysis proves to be useful in fluid flow as it is mainly concentrated on a...Read full

How to choose the direction of the control-volume?

Ans : Choosing an easier control-volume is always the priority. A rectangle that has the XY axes, can have an unknown amount of fl...Read full

Ans : A control-volume analysis proves to be useful in fluid flow as it is mainly concentrated on a particular volume and the fluid passing through it. In order to track the external flow situations, control volume analysis is more useful compared to that of a systematic one.

Ans : Choosing an easier control-volume is always the priority. A rectangle that has the XY axes, can have an unknown amount of flow. On the other hand, if the sides are followed by streamlines, the flow is calculated as zero.

Crack GATE with Unacademy

Get subscription and access unlimited live and recorded courses from India’s best educators

  • Structured syllabus
  • Daily live classes
  • Ask doubts
  • Tests & practice
Learn more

Notifications

Get all the important information related to the GATE Exam including the process of application, important calendar dates, eligibility criteria, exam centers etc.

GATE 2012 Questions with Answers
GATE 2013 Question with Answers
GATE 2014 Question with Answers
GATE 2015 Questions with Answers
GATE 2016 Questions with Answers
GATE 2017 Questions with Answers
GATE 2018 Questions with Answers
GATE 2019 Questions with Answers
GATE 2020 Question Paper with Answer: Download PDFs
GATE 2021 Questions with Answers
GATE 2022 Rankers Summit
GATE 2023 Admit Card – Release Date, How to Download & Direct Link
GATE 2023 Exam Dates
GATE 2024 Registration – Application Form at gate2024.iisc.ac.in
GATE CS & IT Engineering Previous Year Questions with Answers
GATE Cutoff 2023 – Brach-wise and Category-wise cut-off
GATE Electrical Engineering Previous Year Questions with Answers
GATE Electronics and Communication Engineering (ECE) Previous Year Questions with Answers
GATE Exam Calendar 2023
GATE Exam Eligibility 2024 – Age Limit, Qualification, Number of Attempts
GATE Exam Pattern 2023 – New Test Structure, Paper Pattern, Marking Scheme for all papers
GATE Mechanical Engineering Previous Year Questions with Answers
GATE Previous Year Question Papers with Solution – Download PDFs
GATE Previous Year Question Papers with Solutions for Civil Engineering
GATE Result 2023 Out – Steps to check GATE Result
GATE Syllabus 2026: Download GATE Syllabus PDF
See all

Related articles

Learn more topics related to Mechanical Engineering
Zeroth and First Laws of Thermodynamics

The branch of physical science that deals with the relationship between heat and all the other forms of energy is Thermodynamics.

Winds: Headwinds, Tailwinds, and Crosswinds

This write-up is based on the introduction about the topic, Definition of Tailwinds, definition of headwinds, and definition of crosswinds.

Wet Bulb Depression

The difference between the temperature of the dry bulb and the temperature of the wet bulb is referred to as the wet-bulb depression.

Wave and Laplace’s Equations

The wave equation, heat equation, and Laplace's equation are known as three essential conditions in numerical material science and happen in many parts of physical science, in applied arithmetic as well as in designing or engineering.

See all
Access more than

10,997+ courses for GATE & ESE

Get subscription

Related links

  • GATE 2024 Rank Predictor
  • GATE Syllabus
  • GATE 2024 Question Papers with Solutions
  • GATE Previous Year Question Paper
  • GATE Preparation
  • GATE Civil Engineering Syllabus
  • GATE Previous Year Question Papers with Solutions for ECE
  • GATE 2020 Question Paper
  • GATE 2022 Question Paper
  • GATE Eligibility
  • GATE Exam Calender
  • GATE Results
  • GATE Books
  • GATE Notes

Trending Topics

  • GATE 2024
  • GATE Syllabus 2024
  • GATE Registration
  • How to Prepare for GATE Exam
  • GATE Exam Tips
  • GATE MCQs
  • GATE Question Bank
  • PSU Recruitment
practicewithpyqs_gate
Download previous years papers
.
Company Logo

Unacademy is India’s largest online learning platform. Download our apps to start learning


Starting your preparation?

Call us and we will answer all your questions about learning on Unacademy

Call +91 8585858585

Company
About usShikshodayaCareers
we're hiring
BlogsPrivacy PolicyTerms and Conditions
Help & support
User GuidelinesSite MapRefund PolicyTakedown PolicyGrievance Redressal
Products
Learner appLearner appEducator appEducator appParent appParent app
Popular goals
IIT JEEUPSCSSCCSIR UGC NETNEET UG
Trending exams
GATECATCANTA UGC NETBank Exams
Study material
UPSC Study MaterialNEET UG Study MaterialCA Foundation Study MaterialJEE Study MaterialSSC Study Material

© 2025 Sorting Hat Technologies Pvt Ltd

Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA

Share via

COPY