Practice for Developing a Process Step - P104

 

Practice for Developing a Process Step
Practice document
Document Type	Practice
Document Identifier	104
MSTE workflow	Development
Prerequisites	Practice Integrated Product Development

Overview

The practice documents listed below are specific to individual process steps. They provide guidance on how to develop the equipment and tooling composing the manufacturing (MSTE) system of a process step beginning at anywhere from the conceptual state, up to the production state. They take into consideration the maturity of the material and shape defining the part and also provide guidelines on their concurrent development.

it is important to keep in mind that the decisions made in one process step will have implications on previous and future steps that are developed. Therefore, the steps do not have to be developed in any particular order and you may choose to develop a step that is the most defined first.

Process Step Design Gates

The development process for each process step consists in maturing the manufacturing (MSTE) system through three process design gates:

1. Conceptual screening
2. Preliminary selection
3. Detailed finalization

The conceptual screening covers the initialization, i.e. type selection, of material, shape, tooling, and equipment. The Systems Catalogue is useful for this step as it provides a comprehensive list of material, tooling, and equipment to consider. At this stage there is the highest level of design freedom with many options to consider, but it is also a step where significant costs are committed through the decision made at this stage. When coming into this step for developers starting from scratch, the material and shape should be partially defined so that these previous decisions can be used to inform the screening process for tooling and equipment.

The preliminary selection involves defining the parameters of the manufacturing (MSTE) system in such way to meet the expected process step's outcomes. This is done with consideration to foundational and systems level knowledge. This involves quantifying parameters of the MSTE, ensuring that the screened equipment and tooling can operate well enough for the application. This is also the stage where equipment may be purchased or prototype equipment is made.

Finally, the detailed finalization covers the qualification process of ensuring that each component of the manufacturing (MSTE) system functions as intended and that the specified process step's outcomes are satisfied. At this stage, the material, shape, tooling, and equipment exists and is being tested and optimized for production. Alterations of the MSTE components at this stage of the development process will add significant costs.

Process Step Development Pages

The practice documents are outlined according to these three design gates. The page will provide questions to consider along with some examples and useful links. The pages will then provide guidance on how to secure approval and begin commissioning the step that was developed. This is done through the lens of both quality assurance and specific certifications required for different industries and products. The articles will outline common verification methods and tests as well as certification bodies.

Lastly, the practice documents will lead to further articles on best practice for how to perform various aspects of the process step and how to avoid common issues that can arise. For example: Ensuring quality during production of variable thickness parts.

Practice Document

Listed below are the practice documents available for developing a process step:

• Practice for Developing a Receiving and Storage Step
• Practice for Developing a Resin Formulation Step
• Practice for Developing a Deposition Step
• Practice for Developing a Consolidation Step
• Practice for Developing a Thermal Transformation Process Step
• Practice for Developing a Demoulding Step
• Practice for Developing a Trimming and Machining Step
• Practice for Developing an Assembly Step
• Practice for Developing a Coating Step
• Practice for Developing an Inspection Step
• Practice for Developing a Reporting Step
• Practice for Developing a Packaging and Shipping Step

References

About	Help

Any manufacturing and/or decision making activity that occurs during any stage of the development design cycle (e.g. conceptual design to production).

In the context of Knowledge in Practice, practice refers to the systematic use of science based knowledge to reduce composites manufacturing risk, cost, and development time.

In the context of knowledge in practice, knowledge refers to the systematic use of science based knowledge in composites manufacturing practice.

There is a distinction between experience based knowledge and science based knowledge:

• Experience based knowledge (‘know-how’) is an understanding of potential outcomes and their relationships that is founded on pragmatism and experience accumulated over time in individual programs, companies and in the industry more broadly.
• Science based knowledge (‘know-why’) is an understanding of potential outcomes and their relationships, based on the important processing physics, that is mature enough to be codified using the appropriate governing laws and constitutive equations.

With regards to modelling & simulation, verification confirms the implementation of a computational model to ensure that it represents the mathematical model and equations used to describe it (requirements are met).