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You are here: Home / Archives for Articles

Articles

Find all articles across all article series listed in reverse chronological order.

by Tim Rodgers 2 Comments

Improving Quality in China

Improving Quality in China

Many years ago people would complain about “cheap Japanese” products, but today few people would associate Japanese brands with poor quality.

The turn-around is widely attributed to Deming, and Taguchi, and Juran, and other evangelists who taught not only the tools and processes but also the long-term benefits that can be realized when a company adopts good practices and a culture of quality.

Today I hear people complaining about poor quality in Chinese-made parts and products, and there have been several widely-publicized incidents (see Aston-Martin and counterfeit parts).

Many customers have decided to move their production and seek part suppliers in other locations, including “re-shoring” to North America, in part because they’ve concluded that any cost savings due to cheaper labor are outweighed by the costs of poor quality.

It’s hard to say whether this will have a negative impact on the worldwide consumer perception of Chinese brands such as Lenovo, Haier, and others.

[Read more…]

Filed Under: Articles, Managing in the 2000s, on Leadership & Career Tagged With: Supplier reliability

by Fred Schenkelberg Leave a Comment

Warranty Policy Establishment

Warranty Policy Establishment

A common question concerns the warranty period.

How long should we, the manufacture guarantee that our product will work as expected? Do we include limitations or not? How do we decide? [Read more…]

Filed Under: Articles, CRE Preparation Notes, Reliability Management

by Fred Schenkelberg 2 Comments

A Brief Introduction to HALT

A Brief Introduction to HALT

Highly Accelerated Life Testing (HALT) is a technique to expose weaknesses or faults with a product.

HALT uses individual or combined stresses in a step stress approach to quickly apply sufficient stress to reveal defects.

HALT is not a specific chamber or fixed set of test conditions. It is an exploratory process to reveal weaknesses in a design.

The product development process naturally includes a check step, to determine if the expected functions of the product work as expected.

Some teams then add a measured amount of stress (temperature, vibration, dust, load, etc.) to the product to explore functionality at elevated stress levels. [Read more…]

Filed Under: Articles, Musings on Reliability and Maintenance Topics, on Product Reliability Tagged With: Highly Accelerated Life Testing (HALT)

by Fred Schenkelberg Leave a Comment

The Exciting World of Warranty Terms

The Exciting World of Warranty Terms

Here’s a short list of terms related to warranty management. Often is the words we use that matter and understanding the language of warranties is one step in mastering warranty management.

Warranty

A promise made to the buyer of an item that the manufacturer (seller) will repair or replace the item if necessary within a specific time period. [Read more…]

Filed Under: Articles, CRE Preparation Notes, Reliability Management

by Tim Rodgers 3 Comments

Why Should a Supplier Work Harder For You?

Why Should a Supplier Work Harder For You?

A recent LinkedIn discussion addressed the question of the best strategy for dealing with poor supplier performance.

A lot of the respondents seemed to advocate a punitive approach, either threatening the loss of future business if performance doesn’t improve, or combing through the terms & conditions of the contract for enforcement language.

I’ve always thought that there’s a lot of similarity between managing suppliers and managing subordinates, and I wonder if some of these same people threaten their teams with punitive actions when individual performance doesn’t meet expectations. [Read more…]

Filed Under: Articles, Managing in the 2000s, on Leadership & Career

by Fred Schenkelberg 1 Comment

What is the Link between Reliability and Brand?

What is the Link between Reliability and Brand?

In short, you probably do, better reliability performance the better the brand image.

When I’m making a purchase I prefer to buy items that I either have personal experience work well over time (reliable) or have many comments and reviews noting the durability.

As a reliability engineer, I am often asked what kind of car I drive (a Toyota Highlander, if must know). Reliability does matter -not only to me- it matters for many making a buying decision.

When a product’s actual reliability performance exceeds the customers expected reliability performance, the customer may consider the product reliable. This experience builds and when supported by other experiences from the same brand, increases brand equity. High brand equity permits a price premium, increased brand loyalty, and increased positive word of mouth support. [Read more…]

Filed Under: Articles, Musings on Reliability and Maintenance Topics, on Product Reliability Tagged With: Value

by Fred Schenkelberg 1 Comment

Warranty Evolution and Laws

Warranty Evolution and Laws

When making a transaction there is an element of trust.

The buyer is trusting you are providing a product that lives up to the claims provided. Neither party wishes to be duped. Yet, we do enter into transactions. We buy stuff.

A few hundred years ago and prior most purchases were from someone you knew, and most likely knew well. It was in the craftsman’s best interest to maintain honest dealing and create quality products. If not, they would enjoy less business. [Read more…]

Filed Under: Articles, CRE Preparation Notes, Reliability Management

by Fred Schenkelberg 2 Comments

Failure Analysis: The Key to Learning From Failure

Failure Analysis: The Key to Learning From Failure

Why do so many avoid failure?

In product development of plant asset management, we are surrounded by people that steadfastly do not want to know about or talk about failures.

Failure does happen. Let’s not ignore this simple fact. [Read more…]

Filed Under: Articles, Musings on Reliability and Maintenance Topics, on Product Reliability Tagged With: Failure analysis (FA)

by Fred Schenkelberg Leave a Comment

The Liability Part of Reliability Engineering

The Liability Part of Reliability Engineering

In many parts of the world ‘caveat emptor’ [let the buyer beware] no longer applies.

The producer and distributors of products are liable for their products.

This extends beyond product failures and a warranty claim. Today the company is liable for to make right any loss or damage incurred by the use of the product.

Courts and laws around the world reflect the protection of users of products from adverse consequences due to a negligent design and assembly practices.

The producer of a product must consider the user’s safety and provide reasonable safeguards.

This applies even when the user misuses or abuses a product. [Read more…]

Filed Under: Articles, CRE Preparation Notes, Reliability Management, Risk Management Tagged With: Failure consequence and liability management, Requirements

by Fred Schenkelberg Leave a Comment

Basic Approach to Achieve Process Stability

Basic Approach to Achieve Process Stability

Everything varies.

Your vendors provide components with a range of values. Your production process varies, too.

Creating, monitoring, and maintaining process stability enhances your product reliability performance.

When I started my professional life as a manufacturing engineer, a senior engineer told me we take a product design and can only make it worse.

He said if we could make every unit exactly according to the nominal values of the drawing, every unit would work well. [Read more…]

Filed Under: Articles, Musings on Reliability and Maintenance Topics, on Product Reliability

by Fred Schenkelberg 4 Comments

How to Read an OC curve

How to Read an OC curve

The operating characteristic curve, OC curve, visualizes a sampling plan.

At times, we select a sample from a group of items and evaluate them. Does this lot of widgets meet the specifications? Does this batch measure up? [Read more…]

Filed Under: Articles, CRE Preparation Notes, Probability and Statistics for Reliability, Reliability Testing Tagged With: Sample size

by Fred Schenkelberg Leave a Comment

Three Elements of Sample Size Concerning Decision Making

Three Elements of Sample Size Concerning Decision Making

The trite answer is just as many samples as you need and not one more.

A better answer is enough samples to make the right decision. The realistic answer is you will not enough samples.

“How many samples?” is an oft-asked question when planning for quality or reliability testing. [Read more…]

Filed Under: Articles, Musings on Reliability and Maintenance Topics, on Product Reliability

by Fred Schenkelberg Leave a Comment

Management Role Concerning Safety, Quality, and Reliability

Management Role Concerning Safety, Quality, and Reliability

Every product and process has built into it elements that impact the safety, quality and reliability performance.

These features will always be present whether deliberately crafted or not. [Read more…]

Filed Under: Articles, CRE Preparation Notes, Reliability Management Tagged With: Reliability engineering

by Fred Schenkelberg Leave a Comment

Announcing Reliability.fm: A Podcast Network

Announcing Reliability.fm:  A Podcast Network

A break from the normal format.

Reliability.fm

A Reliability Engineering Podcast Network

Reliability.fm.logo_300x300Reliability.fm is a podcast network focused on reliability engineering topics.

Starting with three shows. Speaking of Reliability and Dare to Know described below, along with recorded Accendo Reliability webinars. [Read more…]

Filed Under: Articles, Musings on Reliability and Maintenance Topics, on Product Reliability

by Fred Schenkelberg 5 Comments

Reliability and the Development Phase Gate Process

Reliability and the Development Phase Gate Process

My first major product design review was much less than I thought it would be. This was a new inkjet printer platform and the checkpoint review assessed the teams work and readiness to move to the next stage of development. A team of over 200 engineers and managers meet for 4 hours. [Read more…]

Filed Under: Articles, CRE Preparation Notes, Reliability Management

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