Exam 2 entc 207 - Study guides, Class notes & Summaries

Exam 2 ENTC 207 Question and answers already passed 2023/2024Tool Steels - correct answer - Steels that do work to other steels (Working tools) - High alloy and carbon content - Expensive - Made in smaller lots with more controls - Cleanliness extremely critical - Not many made by many companies (limited accessibility Tool Steel Categories - correct answer - Letter and Number - Cold working - Shock Resisting - Hot working

Exam 2 ENTC 207Tool Steels - correct answer - Steels that do work to other steels (Working tools) - High alloy and carbon content - Expensive - Made in smaller lots with more controls - Cleanliness extremely critical - Not many made by many companies (limited accessibility Tool Steel Categories - correct answer - Letter and Number - Cold working - Shock Resisting - Hot working - High speed - Mold - Special Purpose Cold Working - correct answer - hardening methods - Prefi...

ENTC 207 Final Exam Question and answers correctly solved 2023/2024Tensile Testing Steps - correct answer 1. Place specimen in tester 2. Apply tensile load until sample breaks 3. During loading measure tensile load and length at intervals 4. Measure length after sample breaks 5. Calculations Stress - correct answer force / cross section area Y-axis psi Strain - correct answer

ENTC 207 Exam 3 Question and answers correctly solved 2023/2024 Gray Cast Iron - correct answer Has graphite flakes in it, 2-4% total carbon at least 1% silicon, High dampening capacity, Should not be welded Malleable cast iron - correct answer Best suited for small, thin wall parts ductile cast iron - correct answer very good ductility, magnetic, dampens sound, low notch sensitivity Columnar structure dendrites form on a cold wall of the mold - correct answer if it is well insulated t...

ENTC 207 Exam 3Types of cast irons: - correct answer Gray Iron Malleable Iron White Iron Ductile Iron Alloy Irons Malleable iron is ____ - correct answer heat treated for ductility White iron is ____ - correct answer hard and wear resistant Ductile iron has ____ - correct answer some ductility as cast Cast irons are located where on the iron-iron carbide diagram? - correct answer Above 2% C Casting methods: - correct answer sand casting permanent mold die casting investment...

ENTC 207 Exam 1 Questions with complete solution 2023/2024 Ferromagnetism - correct answer ability of a material to be attracted to a magnet ASTM - correct answer American Society for Testing and Materials ISO - correct answer International Standards Organization Composition - correct answer elemental makeup of a material Microstructure - correct answer the internal and surface features of a material that can be seen under optical or other magnification

ENTC 207 Exam 3Gray Cast Iron - correct answer Has graphite flakes in it, 2-4% total carbon at least 1% silicon, High dampening capacity, Should not be welded Malleable cast iron - correct answer Best suited for small, thin wall parts ductile cast iron - correct answer very good ductility, magnetic, dampens sound, low notch sensitivity Columnar structure dendrites form on a cold wall of the mold - correct answer if it is well insulated then the dendrites should form randomly inside the ...

ENTC 207 2nd Exam As ____ increases, tensile strength goes down - correct answer temperature ____ is most popular/common method of heat treating - correct answer Stress Relieving Little circular pieces are called what? - correct answer Ferrite ____ looks like a very tempered martensite - correct answer Bainite This method of heat treating is used for specialized, thin pieces that would normally be bent or distorted if heat treated like normal - correct answer Austempering Another...