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ENGINEER.48

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Active mechanical designer / Mechanical design experience [20 years] I provide design know-how cultivated through practical experience and real information that is not found in textbooks and is useful in the field.

Chain images in machine design

Chain Usage in Machine Design [Selection, Calculation, and Placement to Extend Life].

2026/1/31    

  Here we note the "basics that designers should keep in mind about chains," a mechanical element that has been used in automatic machines for a long time. Chain usage" is an extremely important factor that determines the reliability of equipment ...

A conceptual diagram of the DRBFM and icons surrounding it showing related processes and elements.

What is DRBFM? Explaining Methods to Improve Design Quality

2025/11/14    

  Here are some notes on DRBFM, a method of preventing design problems before they occur. I have had a difficult time grasping the essence of DRBFM, even though I am familiar with the term.  ...

PEEK resin gears, bearings, plates, and other industrial parts of various colors and shapes are scattered on a laboratory table. In the background, test equipment generating steam and sparks, test tubes, flasks, and cards displaying the logos "NASA" and "ASTM E595" appear blurred.

What is PEEK material of resin? Comprehensive explanation of characteristics, grades, and applications

2025/11/16    ,

  Here is a note on PEEK, a resin material used in automatic machines in clean rooms. Even if you think you understand the characteristics of PEEK, which grade should you choose?.

The Complete Guide to Cleanroom Static Control [For Mechanical Designers].

2025/11/27    ,

  This section notes "clean room static electricity countermeasures" that designers should be aware of when designing automatic machines that operate in clean rooms. In the design of automatic machines in a clean room, static electricity is ...

Image of an automated assembly line operating in a clean room

Design guide for using air cylinders in clean rooms|From countermeasures to exhaust

2025/11/13    ,

  This is a note on "air cylinders" used in automatic machines that operate in clean rooms. Air cylinders are the most common mechanical element for us machine designers, but they can also be used in clean rooms.

Image of an automated assembly line operating in a clean room

How to Select a Cleanroom Electric Actuator and Compare Manufacturers

2025/11/13    ,

  Here is a detailed note on "Electric Actuators for Cleanroom Use," an important mechanical element of automatic machines used in cleanrooms. Automatic Machines Operated in Cleanrooms ...

Image of an automated assembly line operating in a clean room

Basics of automatic machine design for clean rooms

2025/11/27    ,

  Here are some notes on the "basic elements of designing automatic machines for clean rooms. When you take charge of designing automatic machines for clean rooms for the first time, you may wonder where to start and which ...

Image of live-action image of tempering being performed.

What is "Normalizing"? A Thorough Explanation of Purpose, Effects, and Drawing Instructions

2025/11/26    

  Here are some notes on "normalizing," one type of heat treatment. "Normalizing," which can be a headache when indicated on process drawings. If the wrong heat treatment is chosen, the part's performance will not be realized...

Live-action images of annealing and annealing

Textbook of Annealing, Annealing and Annealing|Explanation of types, purposes and drawing instructions

2026/2/16    

  Here are my notes on "annealing," metal heat treatment often confused with hardening. Previously, I received a question about "annealing," "yaki-namashi," and "annealing"...

Live-action image of zub quenching

Comparison of hardening hardness by material. List of steels and design considerations

2026/1/31    

  Here is a memo about "hardness by material" obtained through quenching. I am looking for material-specific hardness data to answer the question, "Which material should I choose to achieve the required hardness for this part?".