Quality Assurance

Curious about the latest developments in Quality Assurance or looking for helpful guides? Check out our newest content on QA practices and techniques!

F30 Visual for visual default inspection

Quality Assurance

Visual Testing – What is it? How to Implement it?

Visual Testing (VT) is the examination of material surfaces and workmanship using the human eye, often aided by optical instruments, to identify discontinuities without damaging the component. It is the most fundamental non-destructive testing method used in mechanical engineering today.I used to treat visual checks as an… <a href="https://www.plastiform.info/en/blog/quality-assurance/visual-testing-what-is-it-how-to-implement-it/" class="read-more">Read More</a>

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An engineer working in a smart factory with another one reading data of a Statistical Process Control setup.

Quality Assurance

Statistical Process Control (SPC) – Definition and Interest

Statistical Process Control (SPC) is a method that uses statistical techniques to monitor and control a manufacturing process. I used to assume that if you set a machine up perfectly, it should produce perfect parts indefinitely. If a dimension drifted, I would immediately tweak the settings to fix it. But… <a href="https://www.plastiform.info/en/blog/quality-assurance/statistical-process-control-spc-definition-and-interest/" class="read-more">Read More</a>

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PAUT test performed in a teaching environment.

Quality Assurance

How does Phased Array Ultrasonic Testing (PAUT) Works?

Phased Array Ultrasonic Testing (PAUT) is an advanced non destructive testing method. It lets you inspect materials for flaws using a group of small ultrasonic probes, with no need to damage the component. You don’t have to move the probe like in conventional single probe tests. It… <a href="https://www.plastiform.info/en/blog/quality-assurance/how-does-phased-array-ultrasonic-testing-paut-works/" class="read-more">Read More</a>

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Quality Assurance

What is Ultrasonic Testing ? How to use it ?

Ultrasonic Testing is a non-destructive method using high frequency sound waves to inspect the internal structure of a material without damaging it.It operates like a medical ultrasound for industrial components, sending sound pulses into a part and analyzing the returning echoes to find flaws or… <a href="https://www.plastiform.info/en/blog/quality-assurance/what-is-ultrasonic-testing-and-how-it-works/" class="read-more">Read More</a>

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Quality Assurance

Weld Quality Control – How to Guide

Welding quality control is a set of processes that ensure weld integrity and compliance with standards. These steps help you prevent defects and guarantee safe, reliable joints in every project.The welding quality detection market reached USD 1.2 billion in 2024 and will grow to USD 2.5 billion by 2033 at… <a href="https://www.plastiform.info/en/blog/quality-assurance/welding-quality-control-how-to-guide/" class="read-more">Read More</a>

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A pipeline used after hydrostatic testing confirmed eligibility

Quality Assurance

Hydrostatic Testing – 2025 Complete Overview

Hydrostatic testing is a non-destructive quality control method used in engineering to verify the structural integrity and leak-tightness of pressure vessels, pipelines, and other systems.It involves filling the component with an incompressible liquid (usually water) and applying a controlled internal pressure around 1.25 to 1.5 times the… <a href="https://www.plastiform.info/en/blog/quality-assurance/hydrostatic-testing-complete-overview/" class="read-more">Read More</a>

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Gas pipeline during a pressure test procedure

Quality Assurance

What is Pneumatic Testing ? How Does it Work?

Pneumatic testing is a method used to check if a pressure system like a pipe, tank, can safely withstand the expected pressure.Instead of filling it with water, the system is pressurized with air or another safe gas. This helps reveal whether it is strong enough, free from leaks, and safe… <a href="https://www.plastiform.info/en/blog/quality-assurance/what-is-pneumatic-testing-how-does-it-work/" class="read-more">Read More</a>

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indirect roughness control with plastiform p80Ra and a roughness tester

Quality Assurance

Plastiform Roughness Measurement Procedure with Contact

Plastiform P80 Ra, as its name suggests, is a product capable of copying the Ra roughness of a surface and reproducing it identically. This ability allows it to be used in cases where the surface to be measured is not accessible to the measuring instrument.Roughness with PlastiformDefinitionRoughness corresponds to… <a href="https://www.plastiform.info/en/blog/quality-assurance/plastiform-roughness-control-procedure-with-contact/" class="read-more">Read More</a>

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Quality Assurance

Quality Control, Definition and Interests

Quality control is a procedure implemented by companies to ensure product conformity.It is carried out by a quality controller with (or without) the assistance of other production stakeholders.Conformity is established based on criteria developed by the company or through mutual agreement between a supplier and a customer. (This includes, for… <a href="https://www.plastiform.info/en/blog/quality-assurance/quality-control-definition-and-interests/" class="read-more">Read More</a>

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Quality Assurance

What is Traceability ? Traceability using Impressions

Traceability is a concept that dates back over 3,800 years to ancient times.In those distant times, people used seals or hot irons to authenticate their exchanges.Today, traceability is ubiquitous in industry, where it provides all necessary information about a product.This information is tracked at each stage of the production chain,… <a href="https://www.plastiform.info/en/blog/quality-assurance/traceability-in-the-industry-what-is-it/" class="read-more">Read More</a>

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Quality Assurance

Non-Destructive Thread Inspection by Impression Molding

Threads are helical grooves commonly known as screw threads. When a thread is inside a cylinder (female thread), it’s called a tapped hole. Conversely, threading refers to an external thread (male thread).Thread, bore, and tap inspection is a common requirement in industry, as numerous parts feature this type of geometry. <a href="https://www.plastiform.info/en/blog/quality-assurance/how-to-inspect-threadings-without-destroying-them/" class="read-more">Read More</a>

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Quality Assurance

Non-Destructive Testing or NDT

Non-Destructive Testing (NDT) is a set of analysis techniques designed to evaluate the properties of a material, component, or system without causing damage. Unlike destructive testing, where you physically stress a part until it breaks, NDT allows you to inspect the structural integrity and employ defect detection techniques on a… <a href="https://www.plastiform.info/en/blog/quality-assurance/non-destructive-testing-or-ndt/" class="read-more">Read More</a>

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