A Company Produces Tables For Producing One Table We Must Ma

A Company Produces Tablesfor Producing One Table We Must Manufacture

A company produces tables. For producing one table, we must manufacture and cut the top (1 m³ of wood) and four legs (0.1 m³ of wood each). For the final assembly, we will take these five parts as well as 5 screws of type A, 10 screws of type B, and 15 nuts of type C per table. Wood, screws, and nuts are purchased from an external supplier.

Describe the Bill of Materials (BOM). Show a Material Requirements Planning (MRP) for producing 100 tables, considering that:

- Delivery time for screws and nuts is one week

- Lead time for producing boards and legs is two weeks

- The tables must be delivered in six weeks from now

Paper For Above instruction

Introduction

Producing a specific number of tables within a defined timeline requires meticulous planning, especially when managing external procurement and internal manufacturing processes. The core tool for this is the Bill of Materials (BOM) and a detailed Material Requirements Planning (MRP) schedule. This paper discusses the formulation of the BOM for the tables and a comprehensive MRP for the production of 100 tables, considering the lead times for manufacturing and procurement constraints.

Bill of Materials (BOM) for the Table Production

The BOM is a detailed list of all components and raw materials necessary to produce a single unit of a product, including quantities and sourcing information. For the table in question, the BOM comprises both internal components (wood parts) and external purchased items (screws and nuts). The specifics are as follows:

- Wood Components:

- Table Top: 1 cubic meter (m³)

- Four Legs: 0.1 m³ each, totaling 0.4 m³

- Fasteners:

- 5 screws of type A

- 10 screws of type B

- 15 nuts of type C

All wood components are manufactured internally by cutting the raw wood material into specified parts, while screws and nuts are obtained externally.

MRP for Producing 100 Tables

The MRP process involves calculating the quantities of raw materials and components needed for the production order, considering inventory levels and lead times, and scheduling their procurement and manufacturing activities accordingly.

Given the delivery times and lead times:

- Screws and nuts: 1-week lead time

- Boards and legs: 2-week lead time

- Final delivery deadline: 6 weeks from now

To ensure on-time delivery, the production process must be carefully scheduled backward from the final delivery date, accommodating all lead times.

Scheduling and Calculations

The final delivery date is 6 weeks from the current date. Production activities for 100 tables will be scheduled to complete just in time for this deadline.

Step 1: Determine the latest start date for manufacturing the internal components (wood parts).

Since the lead time for producing the top and legs is 2 weeks, and assembly of the tables occurs at the latest at week 6, manufacturing must start by week 4.

Step 2: Schedule procurement of external components (screws and nuts).

Screws and nuts have a 1-week lead time; hence, their procurement should be initiated by week 5 to arrive at the beginning of week 6.

Step 3: Calculate total requirements for 100 tables.

- Wood:

- Top: 100 units × 1 m³ = 100 m³

- Legs: 100 units × 0.4 m³ (4 legs per table at 0.1 m³ each) = 40 m³

- Screws:

- Type A: 5 per table × 100 = 500

- Type B: 10 per table × 100 = 1000

- Nuts:

- Type C: 15 per table × 100 = 1500

Step 4: Production schedule

| Week | Activities | Remarks |

|--------|--------------------------------------------------------|----------------------------------------------------------|

| 2 | Manufacture wood parts (top and legs) | Starting early due to 2-week lead time |

| 4 | Complete manufacturing of wood parts | Ready for assembly |

| 4-5 | Procure screws and nuts | Place orders to arrive week 6 |

| 6 | Final assembly of tables | Assembling completed in week 6 |

Step 5: Procurement plan

- Week 5: Place orders for 500 screws of class A, 1000 of class B, and 1500 nuts of class C.

- Delivery expected week 6, aligned with assembly.

Conclusion

This schedule ensures all components are available timely, allowing the production of 100 tables to be completed precisely by week 6, satisfying the delivery deadline. The BOM serves as the basis for material acquisition and internal manufacturing planning, while the MRP schedules the detailed activities respecting lead times and external delivery constraints. Efficient coordination between procurement and manufacturing, with adherence to lead times, is vital for meeting delivery commitments in subsequent orders.

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