Week 12:- Documentation Challenge
OBJECTIVE: To create a Bill of Materials (BOM) and Bill of Parts (BOP) for the designed fixture.
THEORY:
Bill of materials: A bill of materials (BOM) is a comprehensive inventory of the raw materials, assemblies, subassemblies, parts and components, as well as the quantities of each, needed to manufacture a product. In a nutshell, it is the complete list of all the items that are required to build a product. A BOM is sometimes also referred to as a product structure, assembly component list or production recipe.
A well-defined BOM helps companies:
- Plan purchases of raw materials
- Estimate material costs
- Gain inventory control
- Track and plan material requirements
- Maintain accurate records
- Ensure supply robustness and reduce waste
BOP INCLUDES:-
Part Number—Assign a part number to each part or assembly in order to reference and identify parts quickly. It is common for manufacturers to choose either an intelligent or non-intelligent part numbering scheme. Whichever scheme you use, make sure you avoid creating multiple part numbers for the same part.
Part Name—Record the unique name of each part or assembly. This will help you identify parts more easily.
Phase—Record what stage each part is at in its lifecycle. For parts in production, it is common to use a term like ‘In Production’ to indicate the stage of the part. New parts that have not yet been approved can be classified as 'Unreleased' or 'In Design'. This is helpful during new product introduction (NPI) because it allows you to easily track progress and create realistic project timelines.
Description—Provide a detailed description of each part that will help you and others distinguish between similar parts and identify specific parts more easily.
Quantity—Record the number of parts to be used in each assembly or subassembly to help guide purchasing and manufacturing decisions and activities.
Bill of parts: A bill of parts is a list which contains all the required hardware and parts which are to be bought from a supplier.
BOM:
BOP:
