Therefore, OTS should be in the third stage of APQP, because the fourth stage of APQP is the trial production of PPAP, and at this time, the formal process flow, tooling equipment, production personnel and production beat have been used.
Extended data:
Five processes of APQP:
1. Plan and define the tasks of this process:
How to determine the needs and expectations of customers to plan and define the quality outline;
When we do all the work, we must keep our customers in mind;
Confirm that customers' needs and expectations are very clear.
2, product design and development tasks and the main points of this process:
Discuss the elements of the quality planning process to develop the design features into the final form; The team should consider all design elements, even if the design is owned by the customer or both parties; These steps include making samples to verify that products or services meet the task of "Voice of Service";
A feasible design should meet the requirements of production capacity and construction period, and also consider quality, reliability, investment cost, weight, piece cost and time target; Although the feasibility study and control plan are mainly based on the requirements of engineering drawings and specifications, the analysis tools described in this chapter can also capture valuable information to further determine and give priority to the characteristics that may require special product and process control;
Ensure a comprehensive and rigorous review of technical requirements and related technical data; Conduct a preliminary feasibility analysis to review the potential problems that may occur in the production process.
3, process design and development tasks and key points of this process:
Ensure the development of effective manufacturing systems to meet customer needs, requirements and expectations; This paper discusses the main characteristics of manufacturing system and its related control plan for obtaining high-quality products.
4. Confirmation of products and processes Tasks and key points of this process:
This paper discusses the key points of verifying manufacturing process through trial production operation evaluation. It should be verified whether the control plan and process flow chart are followed and whether the products meet the requirements of customers. And pay attention to the research and solution of related problems before formal production.
5 The tasks and key points of the process of feedback, evaluation and corrective measures:
The quality plan will not stop because the process is ready. In the manufacturing stage, all special and common causes of deterioration will be displayed. We can evaluate the output, which is also the time to evaluate the effectiveness of quality planning. At this stage, the production control plan is the basis for evaluating products and services.
References:
Baidu encyclopedia -APQP