How is average job tardiness calculated?

How is average job tardiness calculated? The average lateness for a group of jobs is equal to the total lateness for the jobs divided by the number of jobs. Job flow time includes both actual processing time and any time waiting to be processed. Job lateness is the difference between the job flow time and […]

How does heat treatment affect yield strength?

How does heat treatment affect yield strength? The heat treatment develops hardness, softness, and improves the mechanical properties such as tensile strength, yield strength, ductility, corrosion resistance and creep rupture. These processes also help to improve machining effect, and make them versatile. Does Young’s modulus change with heat treatment? Since the Young modulus is related […]

How do you increase the toughness of steel?

How do you increase the toughness of steel? As-quenched, martensitic steel is strong, but often notably brittle. In order to increase ductility and toughness, martensite is heat-treated by a process called tempering1,2,3. Strength typically decreases with increasing tempering temperature and time, and a corresponding increase in toughness is expected. How do I test my hardness? […]

What are the different types of die casting?

What are the different types of die casting? To produce light alloy castings, three of the most common technologies are: high pressure die casting, gravity die casting and low pressure die casting. Each technology can support permanent casting process with gravity and low pressure also able to support semi-permanent casting processes. What are the advantages […]

How do you update RSS feeds?

How do you update RSS feeds? Change the RSS Feed URL Select My Podcasts. Select the podcast you want to update. Enter the new RSS feed URL in the field, then click Save. Select Update. Podcasts Connect will then validate your RSS feed. Review and fix any validation warnings or errors, if applicable. Select Save, […]

Is relative roughness dimensionless?

Is relative roughness dimensionless? Since the relative roughness is a dimensionless number, both the absolute roughness and diameter must carry the same units. What is equivalent roughness? The equivalent roughness of a mine roadway can be defined. as the roughness of a circular pipe, of which diameter is. equal to the hydraulic diameter of the […]

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