Selçuk Keser - 503111312 - 2nd WEEK UNANSWERED WORDS

1. Counter sinking - UNANSWERED

2. Plant Engineering - UNANSWERED

3. Finite Loading - Erdem Özdemir

4. Kohonen Network - UNANSWERED

5. Chase Production Strategy - Cebrail Yıldırım

6. Safety Stock - Tolga Asa

7. Drum-Buffer-Rope System - UNANSWERED

8. Standardized Work - UNANSWERED

9. Reaming - UNANSWERED

10. Overhead Monorail Handling - UNANSWERED

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1)     Countersinking:

(OLD)

Countersinking is the shaping of a hole or depression to conform to the shape and thickness of a flat or oval screwhead; it is done with a cone-shaped cutter called a countersink. The angle at which the depression is cut is standard, being controlled by the countersink, which in turn is made to conform with the angle of the underside of the screwhead. The purpose of countersinking is to permit the head of a flathead screw to set flush with or slightly below the surface of the wood. A hole that is to receive a flathead or ovalhead screw is first bored, then it is countersunk on the surface which the screw enters. The depth to which a hole is countersunk will depend on the thickness of the screwhesd. This thickness is measured from the point where the body of the screw ends and the head starts, to the widest part of the head.

Fundamentals of shopwork, p. 169

New (Better)

The Mechanical Engineering Drawing Desk Reference: Creating and Understanding ISO Standard Technical Drawings by PAUL, GREEN (22 Mar 2007) Page113

2) PLANT ENGINEERING:

(OLD)

In some cases the production reqirements for a new product require a new manufacturing facility. Plant engineering addresses the design of a production facility totally different from the current production process. Many companies go through this process when the initial production facility is designed and built to meet the needs of a new product line. However, some manufacturers who have frequent model changes, such as those in the automotive industry, would have a large plant engineering group as a part of production engineering to make major facility changes annually.

Computer-Integrated Manufacturing ( James A. REHG) pg:97

(BETTER)

The plant engineering organization must keep ahead of the game or get out of the way.An engaged plant engineering group can see the direct relationship between what it does daily and the financial impact on the company’s bottom line.

Plant engineers must understand the business case for action. Again, why are we here?

Determine the current condition. How are things done around here? Are there opportunities

for improvement? If so, define the target condition.What’s possible and achievable? The key

to this improvement process is developing a realistic action plan to get from the current to the

target condition.Timing is everything.

Successful plant engineers know and understand the following very clearly:

● The current and desired state of the engineering function

● The bottom-line impact on plant profitability

● Their internal vision of the future

● Their mission, vision, and organizational values

Don’t underestimate the power of values. Values govern behavior (“walk the talk”).

Behavior defines your work ethic (what gets measured gets done).Work ethics enable profitability

(continuous improvement). Profitability drives survivability (carried out by thrivers).

And survivability overcomes the competition (benchmark the best).

Standard Handbook of Plant Engineering (3rd Edition) McGraw – Hill – Page 1.6

4) Kohonen Network

(OLD)

Kohonen network is a self-organizing map.Such a network can learn to detect regularities and correlations in their input and adapt their future responses to that input accordingly.The network parameters are adapted by a learning procedure based on input patterns only(unsupervised learning).Contrary to the standrd supervised learning methods , the unsupervised ones us input signals to exract knowledge from data.During learnin , there is no feedback to the environment or the investigated process.Therefore, neurons and weghted connections should have a certain level of self-organization.Moreover, unsupervised learning is only usefull and effective when there is a redundancy of learning patterns.Input and neurons in the competitive layer are connected entirely.Furthermore , the concurrent layer is the network output which generates the response of the kohenen network.

(Springer,Artificcial neural networks for modelling and fault diagnosis of technical processes, page 20 )

NEW (BETTER)

Data Mining and Statistics for Decision Making (Wiley Series in Computational Statistics) by Stéphane Tufféry (11 Mar 2011)

Page 231

Drum-Buffer-Rope System

(OLD)

A drum-buffer-rope production control system has the following basic characteristics.
-The CCR beats the drum to set the pace for entire factory.
-An information rope ties production starts to the CCR.
An inventory buffer at (or heading toward) the constraint protects it from upstream stoppages. (Beyond the Theory of Constraints, William Levinson, p42)

NEW (BETTER)

Beyond the Theory of Constraints: How to Eliminate Variation & Maximize Capacity by William A. Levinson (23 Jul 2007)  PAGE42

 

 

 

STANDARDIZED WORK:

(OLD)

Standardized work is work done at highest efficiency, with a minimum of waste, as a result of all tasks at the work site being organized into perfect sequences.

The three goals for standardized work are (1) high productivity, (2) line balancing for all processes from a production timing standpoint, and (3) elimination of excessive work in process inventory. Each team member is trained in standartized work process and principles; as a result, teams are responsible for the efficient layout of work assignments. Therefore, there is no need for industrial engineers in that function at the facility.

Computer-Integrated Manufacturing ( James A. REHG) pg:289

NEW (BETTER)

Simplified Lean Manufacture: Elements, Rules, Tools and Implementation by N. Gopalakrishnan (30 Jan 2010) PAGE141

 

 

 

 

 

 

Reaming

(OLD)

Reaming is used to slighlt enlarge a hole, to provide a better tolerance on its diameter, and to improve its surface finish.The tool is called a reamer , and it usually has straight flutes.

(P.Groover,Fundamentals of Modern Manufacturing third edition ,page 519)

NEW (BETTER)

Manufacturing Processes Reference Guide by Robert H. Todd, Dell K. Allen and Leo Alting (1 Jan 1994) PAGE109

 

 

 

 

Overhead Monorail Handling

 

(OLD)

Usually, a continuous series of interconnected hooks attached to free-turning rollers that ride in overhead tracks. Parts are hung from the hooks to transport material between workstations or through a production operation. This type of system is frequently used to bring parts past human or robot paint sprayers to complete a painting or coating opeation.

Computer-Integrated Manufacturing ( James A. REHG) pg:349

NEW (BETTER)

 

Classic Productivity Systems for the Assembly Manufacturer or Distribution Center: How Efficient is Your Operation? Take Our Quiz and See! by JD Gray Associates (20 Jun 2011) PAGE134