This document discusses dimensions, tolerances, and surfaces in manufacturing. It defines dimensions as specified part sizes and tolerances as allowable variations from dimensions. Common tolerance types like bilateral and unilateral are described. Measurement instruments and techniques are covered, along with factors that influence surface quality like manufacturing processes. Surface texture, roughness, and integrity are defined and different measurement methods explained. The relationship between tolerances, surfaces, and manufacturing processes is discussed.
This presentation gives the information about Screw thread measurements and Gear measurement of the subject: Mechanical measurement and Metrology (10ME32/42) of VTU Syllabus covering unit-4.
Surface roughness metrology deals with basic terminology of surface,surface roughness indication methods,analysis of surface traces, measurement methods,surface roughness measuring instruments such as Stylus Probe Instrument, Profilometer, Tomlinson Surface Meter ,The Taylor-Hobson Talysurf etc.This is very useful for diploma,degree engineering students of mechanical,production,automobile branch
In it GD&T are explained with a Case study and various types of tolerances are explained with examples. Also in this presentation surface finish is encluded. Finally you will able to understand what is GD&T.
This presentation gives the information about Screw thread measurements and Gear measurement of the subject: Mechanical measurement and Metrology (10ME32/42) of VTU Syllabus covering unit-4.
Surface roughness metrology deals with basic terminology of surface,surface roughness indication methods,analysis of surface traces, measurement methods,surface roughness measuring instruments such as Stylus Probe Instrument, Profilometer, Tomlinson Surface Meter ,The Taylor-Hobson Talysurf etc.This is very useful for diploma,degree engineering students of mechanical,production,automobile branch
In it GD&T are explained with a Case study and various types of tolerances are explained with examples. Also in this presentation surface finish is encluded. Finally you will able to understand what is GD&T.
Comparators: Constructional features and operation of mechanical, optical, electrical/electronics and pneumatic comparators, advantages, limitations and field of applications
Principles of interference, concept of flatness, flatness testing, optical flats, optical interferometer and laser interferometer.
Surface texture measurement: importance of surface conditions, roughness and waviness, surface roughness standards specifying surface roughness parameters- Ra, Ry, Rz, RMS value etc., surface roughness measuring instruments – Tomlinson and Taylor Hobson versions, surface roughness symbols
This PPT discuss the 14 geometric symbols used in GD&T classified under five controls. Only important points are mentioned. Kindly mention, if any other important points are missed out. The sources of the content (including pics) are from various sites which details GD&T. The PPT with modifiers and additional symbols (in detail) will be updated soon.
A basic 2 day training on understanding of GDnT,Geometrical Dimensioning & Tolerancing to Technical & Egineering Group as a common language in understanding Drawings.
Trainer & Speaker
Timothy Wooi,
20C,Taman Bahagia,06000,Jitra, Kedah. Malaysia
email: timothywooi2@gmail.com
Surface finish measurement (mechanical measurement and metrology)Navroz Navodia
THIS ppt is good for understanding basics of surface measurement, it is good for undergraduate students persuing their bachlors in engineering,
the content of this ppt are as under
1) Basic terminology
2)techniques for surface finish measurement
3)comparison techniques like (visual scratch touch microscopic etc inspections)
4)direct instrument like (profilograph profilometer taylor hobson etc)
5)effect of surface finish on material strength
refer to this ppt for quick revision
good for gtu students specially
N3
Comparators: Constructional features and operation of mechanical, optical, electrical/electronics and pneumatic comparators, advantages, limitations and field of applications
Principles of interference, concept of flatness, flatness testing, optical flats, optical interferometer and laser interferometer.
Surface texture measurement: importance of surface conditions, roughness and waviness, surface roughness standards specifying surface roughness parameters- Ra, Ry, Rz, RMS value etc., surface roughness measuring instruments – Tomlinson and Taylor Hobson versions, surface roughness symbols
This PPT discuss the 14 geometric symbols used in GD&T classified under five controls. Only important points are mentioned. Kindly mention, if any other important points are missed out. The sources of the content (including pics) are from various sites which details GD&T. The PPT with modifiers and additional symbols (in detail) will be updated soon.
A basic 2 day training on understanding of GDnT,Geometrical Dimensioning & Tolerancing to Technical & Egineering Group as a common language in understanding Drawings.
Trainer & Speaker
Timothy Wooi,
20C,Taman Bahagia,06000,Jitra, Kedah. Malaysia
email: timothywooi2@gmail.com
Surface finish measurement (mechanical measurement and metrology)Navroz Navodia
THIS ppt is good for understanding basics of surface measurement, it is good for undergraduate students persuing their bachlors in engineering,
the content of this ppt are as under
1) Basic terminology
2)techniques for surface finish measurement
3)comparison techniques like (visual scratch touch microscopic etc inspections)
4)direct instrument like (profilograph profilometer taylor hobson etc)
5)effect of surface finish on material strength
refer to this ppt for quick revision
good for gtu students specially
N3
Concepts of Surface Metro logy, Introduction to Surface Texture, Terminology of Surface Texture, Analysis of Surface Traces, Peak to valley height of roughness ,The average roughness,Form factor & Bearing curve, Specification of Surface Texture Characteristics
This presentation gives the information about mechanical measurements and measurement systems of the subject: Mechanical measurement and Metrology (10ME32/42) of VTU Syllabus covering unit-5.
GD&T is a means of dimensioning & tolerancing a drawing which considers the function of the part and how this part functions with related parts.
GD&T has increased in practice in last 15 years because of ISO 9000.
ISO 9000 requires not only that something be required, but how it is to be controlled. For example, how round does a round feature have to be?
GD&T is a system that uses standard symbols to indicate tolerances that are based on the feature’s geometry.
Sometimes called feature based dimensioning & tolerancing or true position dimensioning & tolerancing
GD&T practices are specified in ANSI Y14.5M-1994.
Force analysis of lathe tool dynamometersathish sak
In machining or metal cutting operation the device used for determination of cutting forces is known as a Tool Dynamometer or Force Dynamometer.
Hence, it is essential to study the metal cutting process for economical aspects of the manufacture of the components.
Surface roughness metrology refers to the measurement and quantification of the minute variations, irregularities, and finer details present on the surface of an object. Surface roughness is a crucial aspect in various industries, such as manufacturing, engineering, and quality control, as it significantly affects the functionality, performance, and appearance of products.
Surface roughness metrology involves the use of specialized tools and techniques to measure and characterize the topography of a surface. Some common methods and instruments used for surface roughness measurement include:
Contact Profilometers: These instruments use a physical stylus or probe that moves along the surface to measure its profile. The stylus records the vertical deviations in the surface, which are used to calculate roughness parameters like Ra (average roughness), Rz (average maximum peak to valley height), Rq (root mean square roughness), etc.
Non-Contact Profilometers: Optical and laser-based systems, such as confocal microscopy, interferometry, and focus variation, measure surface roughness without physically touching the surface. These methods use light, lasers, or other non-contact mechanisms to capture surface details.
Atomic Force Microscopy (AFM): AFM uses a tiny cantilever with a sharp tip to scan the surface at a nanoscale level, producing a 3D profile of the surface. It's highly accurate for measuring extremely small surface features and roughness.
White Light Interferometry: This method uses white light to measure the surface height variations by analyzing interference patterns produced by the reflected light.
Surface roughness measurements are typically expressed using various parameters, including:
Ra (Average Roughness): Arithmetic mean deviation of the roughness profile from the mean line.
Rz (Maximum Height of the Profile): The distance between the highest peak and the lowest valley within a sampling length.
Rq (Root Mean Square Roughness): The root mean square of the roughness profile deviations.
Understanding and quantifying surface roughness is crucial for several reasons:
Quality Control: Ensures that manufactured parts meet specified surface quality standards.
Functionality: Impacts how well parts interact, move, seal, or perform their intended functions.
Performance: Affects friction, wear, and corrosion resistance of components.
Appearance: Influences the visual and tactile perception of a product.
Accurate surface roughness metrology allows manufacturers to control and optimize their processes, resulting in better product performance, durability, and appearance.
Optimization of Turning Parameters Using Taguchi MethodIJMER
Today in manufacturing and metal industries customer satisfaction is very important to
make own place in competitive market and also to make mirror image with faith in the heart of
customer, because customer gives preference to buy good quality product. In the metal and
manufacturing industries for the product low surface roughness is very important. Lowest surface
roughness assures not only good quality but also reduces manufacturing cost. In this paper the main
objective is to study effect of cutting speed, feed rate and depth of cut on surface roughness of mild steel
in turning operation and as a result of that the combination of optimum level of factors was obtained to
get lowest surface roughness. Experiments have been conducted using Taguchi’s experimental design
technique. An orthogonal array, signal to noise ratio, and analysis of variance are employed to
investigate cutting characteristics of mild steel using high speed steel. Experimental results show that
among the cutting parameter cutting speed is the most significant machining parameter for surface
roughness followed by feed rate and depth of cut.
Optimization of Turning Parameters Using Taguchi MethodIJMER
Abstract: Today in manufacturing and metal industries customer satisfaction is very important to
make own place in competitive market and also to make mirror image with faith in the heart of
customer, because customer gives preference to buy good quality product. In the metal and
manufacturing industries for the product low surface roughness is very important. Lowest surface
roughness assures not only good quality but also reduces manufacturing cost. In this paper the main
objective is to study effect of cutting speed, feed rate and depth of cut on surface roughness of mild steel
in turning operation and as a result of that the combination of optimum level of factors was obtained to
get lowest surface roughness. Experiments have been conducted using Taguchi’s experimental design
technique. An orthogonal array, signal to noise ratio, and analysis of variance are employed to
investigate cutting characteristics of mild steel using high speed steel. Experimental results show that
among the cutting parameter cutting speed is the most significant machining parameter for surface
roughness followed by feed rate and depth of cut.
Accpac to QuickBooks Conversion Navigating the Transition with Online Account...PaulBryant58
This article provides a comprehensive guide on how to
effectively manage the convert Accpac to QuickBooks , with a particular focus on utilizing online accounting services to streamline the process.
Cracking the Workplace Discipline Code Main.pptxWorkforce Group
Cultivating and maintaining discipline within teams is a critical differentiator for successful organisations.
Forward-thinking leaders and business managers understand the impact that discipline has on organisational success. A disciplined workforce operates with clarity, focus, and a shared understanding of expectations, ultimately driving better results, optimising productivity, and facilitating seamless collaboration.
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The world of search engine optimization (SEO) is buzzing with discussions after Google confirmed that around 2,500 leaked internal documents related to its Search feature are indeed authentic. The revelation has sparked significant concerns within the SEO community. The leaked documents were initially reported by SEO experts Rand Fishkin and Mike King, igniting widespread analysis and discourse. For More Info:- https://news.arihantwebtech.com/search-disrupted-googles-leaked-documents-rock-the-seo-world/
3.0 Project 2_ Developing My Brand Identity Kit.pptxtanyjahb
A personal brand exploration presentation summarizes an individual's unique qualities and goals, covering strengths, values, passions, and target audience. It helps individuals understand what makes them stand out, their desired image, and how they aim to achieve it.
Putting the SPARK into Virtual Training.pptxCynthia Clay
This 60-minute webinar, sponsored by Adobe, was delivered for the Training Mag Network. It explored the five elements of SPARK: Storytelling, Purpose, Action, Relationships, and Kudos. Knowing how to tell a well-structured story is key to building long-term memory. Stating a clear purpose that doesn't take away from the discovery learning process is critical. Ensuring that people move from theory to practical application is imperative. Creating strong social learning is the key to commitment and engagement. Validating and affirming participants' comments is the way to create a positive learning environment.
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