Bahadır Coşkun 030070008 (4th Week)

Belt Sandling

By far the best method for achieving professional quality shaft tip abrasion is to use a belt-sandling machine. The most popular belt sandling machines used by clubmakers are the 1’’ x 30’’, 1’’ x 42’’ or 2’’ x 48’’ size machines. By using a coarse or medium grid sandling belt (medium grit is acceptable because of the speed of the belt sanding machine), clubmakers can abrade steel shaft tips to the proper roughness and do so faster than with any other method. To avoid notching or cutting a potentionally damaging groove in the shaft. Tip abrasion should always be performed on the flexible portion of the belt where there is no hard metal backing (known as the platen) behind the abrasive belt.
(Jackson J., The Modern Guide to Golf Clubmaking: The Principles and Techniques, 2001, p.56))

THE MICLASS SYSTEM

The MICLASS classification number can range from 12 to 30 digits. The first 12 digits are universal code that can be applied to any part. Up to 18 additional digits can be used to code data that are specific to the particular company or industry. For example, lot size, piece time, cost data, and operation sequence might be included in the 18 supplementary digits. The component attributes coded in the first 12 digits of the MICLASS number are as
follows:
1st digit Main shape
2nd and 3rd digits Shape elements
4th digit Position of shape elements
5th and 6th digits Main dimensions
7th digit Dimension ratio
8th digit Auxiliary dimension
9th and 10th digits Tolerance codes
11th and 12th digits Material codes

One of the unique features of MICLASS system is that parts can be coded using a computer interactively. To classify a given part design, the user responds to a series of questions asked by the computer. The number of questions depends on the complexity of the part. For a simple part, as few as seven questions are needed to classify the part. For an average part, the number of questions ranges between 10 and 20. On the basis of responses to its questions, the computer assigns a code number to the part.
(Raju R.S., Cad Cam Cim, 3rd Edition, p.277)

DCLASS System

DCLASS is an acronym for Decision Classification Information System. It is general purpose computer system for processing classification and decision-making logic. The system has two main features:

Infırmation tree processing that allows both Standard and user defined logic

Flexibility which allows easy interfacing with the user’s own application program environment

The tree structures used in DCLASS may contain classification systems or other user-defined logic. As we discussed in chapter 4, DCLASS has been very well used in the application of GT, especially for classification and coding systems.

( Zhang H.C., Alting L., Computerized manufacturing process planning systems, p.259)

Genba

Genba indicates the “actual site” where all important processes take place, and people who run the genba are considered to have full power and responsibilities for what is going on there. Therefore to succesfully implement this idea, systematic delegation of authority from management and engineering sections to genba leaders and workers is indispensable.

In Japan, the genba is recognised as the ultimate source of competitive strength and all efforts are placed on improving production prosesses in order to perfect genba-shugi. Consequently the shop sometimes experiences increasing pressure, and stres increases. When this happens, the weight of expectations associated with genba-shugi will become excessive for team members and work will become overwhelming.

(Bird A., Encyclopedia of Japanese Business and Management, 2001, p.162-163)