White Horse Plastics

Validation Processes

Validation Processes

Validation Processes

PPAP

The Production Part Approval Process (PPAP) is a series of documents gathered by suppliers for the formal certification/sign-off of a new or modified component.  The process was developed by AIAG (The Automotive Industry Action Group) and is used in the automotive and aerospace industries to ensure a standardised validation process is followed.  It enables clear communication of customer objectives, such as critical dimensions and production schedules, and documents all elements of the manufacturing process for that part, including provenance of materials and in-production, quality assurance processes.

The PPAP can be tailored for the manufacture of components in other sectors, to establish stable manufacturing processes that adhere to recognised standards, such as for the production of medical devices.

The Process Capability Index (Cpk)

The Process Capability Index (Cpk) is a statistical tool that measures the ability of a process to produce output within a customer specification limit.  A score of <1.0 is ranked as poor or incapable; a score of > 1.67 is assessed as capable and a score of 2.0 or higher is assessed as excellent, and compliant with 6 Sigma manufacturing environments.

White Horse Plastics frequently maintains Cpk scores of 2.0 or higher.

The Failure Mode and Effects Analysis (FMEA)

FMEA is a process analysis tool – a structured approach to identifying all possible failures in a design, manufacturing or assembly process.  It is conducted at White Horse Plastics by a cross functional team representing all stages of a new part’s process in advance and in the early stages of its Design for Manufacture.  Potential risks are documented and solutions devised in the form of process flow charts, which are referred to for best practise during the life time of the component.

Repeatability and Reproducibility Studies (R & R)

Repeatability and reproducibility studies confirm the methods of product measurement, including the calibration of all measuring equipment.  When these measurement systems have been determined, statistical analysis and Cpk are implemented.  Statistical studies map the entire process together with any possible process variations.

WHP deploys a wide range of testing and measuring equipment for these processes including CMM, an optical and tensile testing machine, practical height gauges, comparators and other hand held devices.

Final checks at WHP ensure that all product labels and packaging are correct, traceability can be provided and use of batch numbers, bar codes and unique box identification provides confidence of receipt of the correct product at the right time.

White Horse Plastics quality standards include ISO:13485, ISO:14001, ISO:9001 and IATF:16949

 

About White Horse Plastics

White Horse Plastics is a UK based injection moulding company specialising in the design and production of tight tolerance components and sub assemblies for the medical, automotive and UK Manufacturing sectors.

 

We are based in Stanford-in-the-Vale, close to the research laboratories of South Oxfordshire, run 30+ moulding machines in 20,000 square feet of space and employ more than 20 specialist engineers and operators.

 

In the two years since the management bought out the company, the new directors have committed to promoting the distinctive competence of White Horse Plastics, offering a growing number of UK & EU OEMs world class, small technical components.

 

We are committed to the lifetime development of our staff – many of us have worked for the company for over 20 years.  We are also committed to improving sustainability within our industry and work with a number of supply partners who offer recycled, renewably sourced and sustainable polymer materials.  Read more about sustainable options here.

Talk to us about your project.

White Horse Plastics

Unit 6, White Horse Business Park

Stanford-in-the-Vale

Faringdon

Oxfordshire

SN7 8NY

01367 710007

info@whitehorseplastics.co.uk

About White Horse Plastics

White Horse Plastics is a UK based injection moulding company specialising in the design and production of tight tolerance components and sub assemblies for the medical, automotive and UK Manufacturing sectors.

We are based in Stanford-in-the-Vale, close to the research laboratories of South Oxfordshire, run 30+ moulding machines in 20,000 square feet of space and employ more than 20 specialist engineers and operators.

In the two years since the management bought out the company, the new directors have committed to promoting the distinctive competence of White Horse Plastics, offering a growing number of UK & EU OEMs world class, small technical components.

We are committed to the lifetime development of our staff – many of us have worked for the company for over 20 years.  We are also committed to improving sustainability within our industry and work with a number of supply partners who offer recycled, renewably sourced and sustainable polymer materials.  Read more about sustainable options here.

Talk to us about your project.

White Horse Plastics

Unit 6, White Horse Business Park

Stanford-in-the-Vale

Faringdon

Oxfordshire

SN7 8NY

01367 710007

info@whitehorseplastics.co.uk