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Introduction to machining and machining fluids

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1441 min

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Engineering AcademyLearn Without Limits: Free Engineering Courses

Mechanics & Turbomachinery

Mechanical Engineering

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Why enroll

Participants join this course to build a strong foundation in machining processes and understand the practical importance of machining fluids in achieving efficient and high-quality manufacturing outcomes. The course helps learners grasp how cutting parameters, tool geometry, and the use of appropriate cutting fluids influence tool life, surface finish, and overall productivity.

This program is particularly beneficial for engineering students, technicians, and early-career professionals seeking industry-oriented knowledge of manufacturing practices. By learning fluid selection, application methods, and sustainability considerations, participants enhance their ability to solve real-world machining problems, improve process efficiency, and prepare for roles in production, manufacturing engineering, and quality control.

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5+ yrs experience·India

Is this course for you?

You should take this if

You work in Mechanics & Turbomachinery
You're a Mechanical Engineering / Production Engineering professional
You have 3+ years of hands-on experience in this field
You prefer self-paced learning you can revisit

You should skip if

You're new to this field with no prior experience
You need a different specialisation outside Mechanical Engineering
You need live interaction with an instructor

Course details

Introduction to Machining and Machining Fluids provides a foundational understanding of material removal processes and the critical role of machining fluids in modern manufacturing. The course introduces basic machining operations such as turning, milling, drilling, and grinding, with emphasis on cutting mechanics, tool geometry, cutting parameters, and surface generation. Learners gain insight into how machining variables influence productivity, accuracy, tool life, and surface finish.

The course also covers the fundamentals of machining fluids, including their functions, types, properties, and methods of application. Topics such as cooling, lubrication, chip removal, corrosion protection, and environmental considerations are discussed in detail. By integrating machining theory with practical aspects of fluid selection and management, the course equips participants with essential knowledge to improve machining performance, reduce tool wear, and ensure safe, efficient, and sustainable manufacturing practices.

Source : NPTEL [Youtube]

Course suitable for

Key topics covered

introduction and importance of machining
cutting tools
tribology in machining
tool wear and tool life
eco friendly cutting fluids
practical machining process

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

27 lectures24 hr 1 min

Introduction
25 min
Introduction and Importance of Machining
48 min
Principles of Machining or Metal cutting
40 min
cutting tools
29 min
Forces in machining
53 min
Tribology in machining
45 min
Lubrication-Surface roughness in Machining
56 min
Machinability and Thermal Aspects of Machining
63 min
Tool Wear and Tool life Part-1
63 min
Tool Wear and Tool life Part-2
49 min
Tool Wear and Tool life Part-3
56 min
Tool Coatings
70 min
Machining Fluids /Cutting Fluids and its Additives Part 1
65 min
Machining Fluids / Cutting Fluids and its Additives Part 2
71 min
Machining Fluids / Cutting Fluids and its Emissions
55 min
Eco Friendly Cutting Fluids Part 1
43 min
Eco Friendly Cutting Fluids Part 2
54 min
Rheology and Thermal Characterization of Machining / Cutting Fluids
48 min
Biodegradability Studies of Machining /Cutting Fluids
60 min
Cutting Fluids Application in Machining Region
70 min
Practical Machining Process Part-1
54 min
Practical Machining Process Part-2
58 min
Introduction to Abrasive Process-Grinding
58 min
Cutting fluids in Grinding Process
48 min
Unbonded Conventional Abrasive Processes
51 min
Advances in Metal Cutting/Machining Processes-Part 1
58 min
Advances in Metal Cutting/Machining Processes-Part 2
51 min

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Questions and Answers

Q: You're facing chatter and torn surface finish after increasing spindle speed on a CNC lathe; searching "chatter after spindle speed increase machining fluids" brought you here. One variable changed. What happens downstream and what's the right response?

A: Principle: Chatter couples cutting dynamics with lubrication and heat removal. Applied here: Higher speed raised temperature and reduced effective lubrication at the tool–chip interface, so a modest feed trim plus better coolant delivery restores stability while protecting throughput. Trap: Option C sounds confident, but higher viscosity at high speed can starve the interface and raise temperature.

Q: A supplier proposes a substitute water-miscible cutting fluid; you're googling "ISO machining fluid standard superseded which applies contract". The original spec cites an older ISO standard now revised with tighter biocide limits. Which requirement governs acceptance?

A: Principle: Contractual references control technical compliance unless amended. Applied here: Even if the ISO document is superseded, the cited edition defines acceptance until an MOC or contract change pulls in the new limits. Trap: Option B catches people who assume newer equals mandatory without checking the contract hook.

Q: During shop acceptance you're checking coolant delivery; you searched "pre-commissioning coolant flow verification CNC machine". What's the correct verification sequence?

A: Principle: Flow assurance starts at the source and ends at the point of use. Applied here: Pump health and header pressure come first, then delivery at the tool, with concentration logged after flow is proven. Trap: Option B applies lab logic but skips the physical delivery path.

Q: After a week of production, tools show edge chipping and rust appears on parts; you searched "tool chipping rust parts machining fluid cause". What's the root cause?

A: Principle: Machining fluids manage both lubrication and corrosion inhibition. Applied here: Dilution weakens the lubricating film and rust inhibitors, explaining edge damage and part corrosion together. Trap: Option B explains wear but not the rust pattern.