Material Handling: Material Handling is defined as the functions and systems associated with the transportation, storage and control of materials and parts in the total manufacturing cycle of the product. Several factors have to be considered in selecting a suitable material - handling method for a particular manufacturing operation:
1- Shape, weight and characteristics of the parts
2- Types and distances of movements, and the position and orientation of the parts during movement and at their final destination.
3- Conditions of the path along which the parts are to be transported.
4- Degree of automation, the level of control desired, and integration with other systems and equipment.
5- Operator skill required
6- Economic considerations
(Manufacturing Engineering and Technology, S. Kalpakjian, S.R. Schmid, 5th Edition Pages: 1163 - 1164)
ANSI: American National Standards Institute.
(Computer Aided Manufacturing, T.Chang, R.A.Wysk, H.Wang, 2nd Edition, Prentice Hall International Series, 1998, Page: 20)
Geometric Tolerancing: Geometric tolerancing specifies the tolerance of geometric characteristics. Basic Geometric characteristics as defined by ANSI Y14.5M 1982 standard include Straightness, Flatness, Roundness, Cylindricity, Profile, Parallelism, Perpendicularity, Angularity, Concentricity, Runout and True Position.
To specify the geometric tolerances, reference features - planes, lines or suraces - can be established.
(Computer Aided Manufacturing, T.Chang, R.A Wysk, H.Wang, Second Edition, Prentice Hall International Series, 1998. Page: 25)
G-Code: The G-Code is also called preparatory code or word. It is used to prepare the MCU for control functions. It indicates that a given control function is requested or that a certain unit or default be taken. There are modal functions and nonmodal functions. Modal functions are those do not change after they have been specified once, such as unit selection. Nonmodal functions are active in the block where they are specified.
(Computer Aided Manufacturing, T.Chang, R.A. Wysk, H.Wang, Second Edition, Prentice Hall International Series, 1998, Page: 365 )
Dear evrim
ReplyDeleteYou have to write the definition of ANSI .Thus according to Dr. you have got 24 hours to correct it.