The benefit of these methods for the customer is the ability to achieve stress level results quicker than with conventional environmental test methods. HALT and HASS are accelerated product reliability testing methods focused on finding potential defects in products. The objective is to identify every weak point and to fix it. These acronyms stand for: HALT – Highly Accelerated Life Test; HASS … An Importer’s Guide to New Product Manufacturing in China in 2020, developing a new product ready for manufacturing, You Need To Know About UKCA If You Sell Products In The UK, Why Product Safety, Quality, and Reliability Are Tightly Linked, Exploring Good Manufacturing Practices (GMPs) [Podcast], Challenges for Moving Manufacturing out of China in 2020, How To Perform In-Depth Due Diligence On Your Supplier [Podcast], Industrial products subjected to extreme environments. These acronyms stand for: If you are developing a new product ready for manufacturing and you want to know if it will keep working as planned after a few years of use, you can send a few samples to a testing laboratory and ask them to perform HALT and/or HASS. HASS, or Highly Accelerated Stress Screening, is a testing process that is performed on components and finished assemblies. Copyright © 2020 DNB Engineering, Inc. All Rights Reserved. Highly Accelerated Life Testing (HALT) is a process that utilizes a stepped stress approach in exposing your product to diverse accelerated stresses to discover the physical … HALT & HASS Testing Services Our HALT & HASS testing laboratory provides services to help shorten new product development time, decrease warranty costs and significantly improve product reliability. "Grms" - Vibrational G's in the root mean square, where "G" is acceleration due to gravity. Let’s say the design of your new product looks robust based on HALT. Any reader has experience with HALT and HASS to share? Connector & Component Qualification Testing. Some production samples are selected and placed under stress tests. Production samples often differ markedly from pre-production prototypes (because processes are different), and there are often differences AMONG production samples (because of variability). … This failure is identified as a weak point in the design or material used. Quality Assurance, Product Development, and Purchasing Strategies in China. HALT and HASS testing at DNB Engineering, Inc. use the environmental chamber with the ability to combine both temperature and random vibration inputs. Often, these changes will improve the overall design and reduce the time spent in the development phase of the product lifecycle, effectively speeding the product’s time-to-market. Highly Accelerated Stress Screening (HASS) is a production quality assessment to quickly and efficiently identify any weaknesses that the product may have inadvertently developed during the manufacturing stage. Vibration levels up to 50 Grms can be applied simultaneously in three linear axes (X, Y, and Z) and three rotational axes (pitch, roll, yaw). Once identified, product and material changes can be rugged the product to improve overall quality. 1516 Centre CircleDowners Grove, IL 60515, © 2020 Elite Electronic Engineering, Inc. All Rights Reserved, Truck, Construction & Ag Equipment EMC Testing, Climatics - Temperature, Humidity, Altitude, Reliability Engineering & Program Management, Highly Accelerated Stress Screening (HASS). Some of the more common product categories subjected to HALT & HASS would be: In HALT, which is applied at the product development stages or pre-production, temperature and vibration stress conditions are used during product development to find weak spots in the product design and its planned fabrication processes. HASS is a good complement to a process FMEA analysis. HALT is a good complement to a design FMEA analysis. What is HALT and HASS? This requires only a few units. "UOL" and "UDL" - The "Upper Operating Limit" and "Upper Destruct Limit " occur in the hot temp step stress stage. Once a new prototype has been built based on a new design, a new round of HALT should take place. Request a quote now to start your HALT/HASS plan. For more information: Download Elite's HALT/HASS RFQ Guide / Visit our HALT/HASS page! Highly accelerated life tests find weaknesses and flaws early in the design phase by testing to failure, while highly accelerated stress screening (HASS) catches manufacturing defects on production parts prior to installation without reducing the part's life. The test results benefit customers, protect the manufacturer's reputation, and prevent costly re-design later in the product development cycle. (Failures that appear later in the life of a product are much more dependent on the environment and they way the product was used.). Instead, HASS testing identifies the upper and lower operational range of a product and allows for the opportunity to increase the operational range well beyond the product’s expected lifetime operational stresses. During the HALT test, components and assemblies are subjected to rapid temperature ramp rates and six-axis random vibration stresses, which gradually increase until there is a failure. A HASS provides the engineering team with a list of issues. This is the official blog of Sofeast.com. Highly Accelerated Life Testing (HALT) is a process that utilizes a stepped stress approach in exposing your product to diverse accelerated stresses to discover the physical limitations of a design and product reliability. This type of screening is particularly good at highlighting the type of failures that commonly appear in the early life of the product. Tweet Renaud here or hit the button below to get in touch. The manufacturer launches production, and a whole new set of issues might appear. In addition to identifying defects in existing products, HASS testing … This blog is written by Renaud Anjoran, an ASQ Certified Quality Engineer who has been involved in Chinese manufacturing since 2005. Any stress that exposes design weaknesses … The HASS process utilizes similar equipment to the HALT process, and the development of a usable HASS profile requires previous HALT results as well as other data and related validation information. HALT, or Highly Accelerated Life Testing, is a testing process often known as Destruct Testing. Elite's in-house machine shop allows us to design and fabricate any custom fixture or automation solutions to meet your specific product requirements. HALT & HASS in a Nutshell Highly Accelerated Life Tests (HALT) are run during the design phase of a program to find design weaknesses and eliminate them. HASS tests do not stress products to their destruct point. It's easy to subscribe to our newsletter where you'll receive weekly updates for professional importers and manufacturers on better understanding, controlling, and improving manufacturing & supply chain in China. The testing generally takes a short time. Filed Under: Quality Control Tips Tagged With: defects, HALT, HASS, product testing, reliability testing. Both are "Test, Analyze, Verify, and Fix" approaches - with Root Cause Analysis along the way! Manufacturers can discover their products' failure modes and determine their failure mechanisms. DNB’s experienced engineers will provide full support, quick setup, and running HALT & HASS tests on your product to get fast results. HALT and HASS are accelerated product reliability testing methods focused on finding potential defects in products. HALT and HASS profiles are composed of several segments defined by the product's intended end-use environment: Here are some common HALT/HASS acronyms used to specify test profiles: Our team of experts can support your test needs from planning stages, to testing, and failure analysis.
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