MODULE 01PP II I (04 HRS)

Syllabus

Problems?

Skill

Inconsistency

Time consuming

Tedious especially when variety

Low Productivity

Requirement of skilled operators

Inconsistency in quality of manufactured goods

Time consuming

Tedious for manufacture of complicated profiles

Low productivity

Need?

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Stand-alone NC machine Flexible Manufacturing System Transfer line

Production Volume

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Numerical Control (NC) is a method of automatically operating amanufacturing machine based on a code of letters, numbers,and special characters.

The numerical data required to produce a part is provided to amachine in the form of a program, called part program or CNCprogram.

The program is translated into the appropriate electrical signalsfor input to motors that run the machine.

Modern Computer Numerical Control (CNC).

They can run unattended at over 20,000 rpm(spindle speed) with a feed rate of over 600 ipmand an accuracy of 0.0001

Types of CNC Systems

NC

CNC

DNC-I (Direct Numerical)

DNC-II (Distributed Numerical)

DNC-I (Direct Numerical)

DNC-II (Distributed Numerical)

Mainframe Computer

Server 1 Server 2

High Speed Machining (HSM)

What Is High Speed Machining?

The answer does not have to do with any particularspeed. It has to do with how that speed is used.

◦Very high tool rpm, small depths of cut and high feed rates

◦Mostly used in milling hard mold and die steels (hence term “hard milling”)

What is it? HSM

◦Maximizes overall productivity – fewer process steps, faster machining

◦Machining Mold and Dies made of very hard materials (P20, H13, D2, etc.

Tool or Mold steels), deep cavities and fine details typically require time

consuming EDM processes.

◦HSM produces high quality finish on milling machine – reduces need for

EDM electrodes, burning and hand finishing

Advantages

Special purpose machines

Customizable solutions

NITIN GURAV / ME SEM II / PLM

Transfer line and mass production machines

Henry Ford (July 30, 1863 – April 7, 1947)

American industrialist, the founder of the Ford Motor Company.

Sponsor of the development of the assembly line technique of massproduction.

Although Ford did not invent the automobile or the assembly line,he developed and manufactured the first automobile that many middleclass Americans could afford.

In doing so, Ford converted the automobile from an expensivecuriosity into a practical conveyance that would profoundly impact thelandscape of the twentieth century.

Types of Automation and tooling

Simulation..??

It can be defined as a process of developingmathematical models of a real system toevaluate the impact that some parametershave on a given output.

Advantages:◦Cost reduction and time saving

◦Complex systems can be evaluated

◦Visualization under variety of conditions

Types of Simulations:Discrete:◦ State of system changes only at ‘discrete event’ times.

◦ e.g. Customers arrive at a bank branch, trucks travel on a highwaynetwork

Continuous:◦ State of system represented by algebraic or differential equationswith variables that change continuously over time.

◦ e.g. Nuclear reactions, chemical process, ocean waves

Types of Simulations:Mixed:◦The system has discrete elements as well as continuous elements.

◦ e.g. Metal moulding and casting, ecosystems etc.

Dynamic:◦The system status changes over time. It requires that system performance with respect to time be taken into account.

◦ e.g. Speed of a vehicle, Revolutions per minute

Automation..??Introduction:

Need for automation:

Types of Automation Systems:◦Fixed/Hard Automation◦Flexible Automation◦Programmable Automation

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Programmable Automation Flexible Automation Fixed Automation

Production Volume

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NC Machine

FMS

Transfer line

Base

Arms

Shoulder

Elbow

Forearm

Wrist

Claw gripper/End Effector

ROBOT:

ROBOT: Cartesian

ROBOT: Spherical

ROBOT: Cylindrical

ROBOT: Articulated

Digital

ManufacturingCollaborative Product

Development Management

cPDM DM

Computer-aided: Design,

Engineering And Manufacturing

CAx

Design Freedom with Active Mock-Up

Best-in-class Usability

Active Mock-Up massiveassemblies, especially inmulti-CAD

Design Freedom withSynchronous Technology toenable designers to worktheir way

Expanding the Power ofCAM & CAE, adding newcapabilities

Industrial Design & Styling (CAID)

Design (CAD)

Digital Simulation (CAE)

Tooling

Machining (CAM)

Siemens PLM Software – Portfolio

DIGITAL PRODUCT DEVELOPMENT

Design & engineer better products faster...

DIGITAL MANUFACTURING

Build & support products more efficiently...

DIGITAL LIFECYCLE MANAGEMENT

Collaborate & innovate more intelligently...

PRODUCT DESIGN FOR MID-SIZED COMPANIES

Design better products faster

Virtual and real come together…Automotive

Virtual and real come together…Aerospace

Virtual and real come together…High Tech & Electronics

Virtual and real come together…High Tech & Electronics

Virtual and real come together…Heavy Equipment

Virtual and real come together…Consumer – Appliances

Virtual and real come together…Machinery

Virtual and real come together…Machinery – Devices

Virtual and real come together…Consumer – Luxury Goods

THANK YOU..!