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 2026 Exam Date Announced – Complete Schedule, Syllabus, and Key Details » GATE Study Materials » Mechanical Engineering » Tool Life and Wear

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.

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

© 2026 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