Chapter 11, Problem 48AP

(a)

Summary Introduction

Interpretation: A machine shop located on the outskirts of Los Angeles accepts custom orders from a number of high-tech firms in southern California. The machine shop consists of four departments: A (lathes), B (drills), C (grinders), and D (sanders). The from-to chart showing distances in feet between department centers is given.

			To Department
			A	B	C	D
		A		45	63	32
From Department	B	29		27	46
		C	63	75		68
		D	40	30	68

The shop has accepted orders for production of four products: P1, P2, P3 and P4. The routing for production of these products and the weekly production rates are

Product	Routing	Weekly Production
P1	A-B-C-D	200
P2	A-C-D	600
P3	B-D	400
P4	B-C-D	500

Assuming that products are produced in batches of size 25; from the given data, a from-to chart giving numbers of materials handling trips per week between departments needs to be given.

Concept Introduction: A routing planning chart consisting of a matrix is called a from-to chart. Various operations are written across the top and along the left side of the form.

(b)

Summary Introduction

Interpretation: A machine shop located on the outskirts of Los Angeles accepts custom orders from a number of high-tech forms in southern California. The machine shop consists of four departments: A(lathes), B(drills), C(grinders), and D(sanders). The from-to chart showing distances in feet between department centers is given.

			To Department
			A	B	C	D
		A		45	63	32
From Department	B	29		27	46
		C	63	75		68
		D	40	30	68

The shop has accepted orders for production of four products: P1, P2, P3 and P4. The routing for production of these products and the weekly production rates are

Product	Routing	Weekly Production
P1	A-B-C-D	200
P2	A-C-D	600
P3	B-D	400
P4	B-C-D	500

Assuming that products are produced in batches of size 25, and assuming that the cost of transportation of one batch 1 foot is estimated to be $1.50; from the from-to chart derived from part (a), a from-to chart giving the materials handling cost per week between departments, needs to given.

Concept Introduction: A routing planning chart consisting of a matrix is called a from-to chart. Various operations are written across the top and along the left side of the form.

(c)

Summary Introduction

Interpretation: A machine shop located on the outskirts of Los Angeles accepts custom orders from a number of high-tech forms in southern California. The machine shop consists of four departments: A(lathes), B(drills), C(grinders), and D(sanders). The from-to chart showing distances in feet between department centers is given.

			To Department
			A	B	C	D
		A		45	63	32
From Department	B	29		27	46
		C	63	75		68
		D	40	30	68

The shop has accepted orders for production of four products: P1, P2, P3 and P4. The routing for production of these products and the weekly production rates are

Product	Routing	Weekly Production
P1	A-B-C-D	200
P2	A-C-D	600
P3	B-D	400
P4	B-C-D	500

Assuming that products are produced in batches of size 25, based on the results of part (b) and assuming that $A$ is assigned to the highest cost and $O$ to the least, with rankings $E$ and $I$ assigned to the costs falling in between the extremes, an activity relationship chart for the four departments needs to be developed.

Concept Introduction: A routing planning chart consisting of a matrix is called a from-to chart. Various operations are written across the top and along the left side of the form.

(d)

Summary Introduction

Interpretation: A machine shop located on the outskirts of Los Angeles accepts custom orders from a number of high-tech forms in southern California. The machine shop consists of four departments: A(lathes), B(drills), C(grinders), and D(sanders). The from-to chart showing distances in feet between department centers is given.

			To Department
			A	B	C	D
		A		45	63	32
From Department	B	29		27	46
		C	63	75		68
		D	40	30	68

The shop has accepted orders for production of four products: P1, P2, P3 and P4. The routing for production of these products and the weekly production rates are

Product	Routing	Weekly Production
P1	A-B-C-D	200
P2	A-C-D	600
P3	B-D	400
P4	B-C-D	500

Assuming that products are produced in batches of size 25, supposing that the machine shop is located in a building that is 60 feet by 80 feet and that departments are rectangularly shaped, with the shape of facility as in Figure 10-32, a layout consistent with the relationship chart obtained from part (c) needs to be sketched.

Concept Introduction: A routing planning chart consisting of a matrix is called a from-to chart. Various operations are written across the top and along the left side of the form.