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    Exploratory workshop on the Social Impact of Robotics

Mitchell Hutchins Inc.

the manufacturing world will be concentrated initially into those areas which will result in reduced manufacturing costs primarily through direct labor savings and enhanced quality, the ultimate evolution will probably be toward encompassing that technology as part of a flexible manufacturing systems approach to production. A recent Machine Tool Task Force study highlighted the characteristics of manufacturing (Figure 1) and advocated the development of flexible manufacturing systems to handle production at more economical costs and at an increased rate of productivity.

Characteristics of manufacturing

Figure 1

Type of production:

Piece

Batch

Mass

Ioo%

1

High estimate

Low

es!lmate

L

<u+::<:: .

  • -

    *

54

10-300

Over 200

30015.000

over 10,OOO

Typical

Manual

stand-done

machines

NC

Source:

Machine

motors,

small

tractors

appliances

NC with auto

Transfer.

part-handling,

dedicatad

machining cell,

spe cial

flex mfg syst

machine

Maine engines. large electric

A u t o s . f a s t e n e r s .

Tool

Task

Force

on Machine

Tool

Technology

Table 2:

Time Losses in Manufacturing

Low Volume

Mid-Volume

High Volume

6%

8%

2

4

12

7

.-

7

2

--

Source:

Machine Tool Task Force on Machine Tool Technology

Productive Cutting C u t t i n g C o n d i t i o n s S e t - u p / L o a d i n g / G a u g i n g Tool Change Idle Time I n c o m p l e t e S e c o n d a n d T h i r d S h i f t s H o l i d a y s a n d V a c a t i o n s o r P l a n t S h u t d o w n Equipment Failure I n a d e q u a t e S t o r a g e W o r k S t a n d a r d A l l o w a n c e

and Miscellaneous

34

28

--

6

--

--

44

40

22% --

14

7 --

27 7 7

16

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