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Chapter 2 Material and Process Classifications Chapter Highlights The North American Industry Classification System (NAICS) is used to identify manufacturing industries There are five major material families, or types of materials used in the manufacture of hard good manufactured products

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chapter 2

Chapter 2

Material and Process

Classifications

chapter highlights
Chapter Highlights
  • The North American Industry ClassificationSystem (NAICS) is used to identify manufacturing industries
  • There are five major material families, or types of materials used in the manufacture of hard good manufactured products
  • Differentiation between primary and secondary manufacturing industries
chapter highlights3
Chapter Highlights
  • The major processing actions—forming, separating, fabricating, conditioning, and finishing—can be used to classify types of manufacturing processes
  • Case studies of processes in industry, associating process actions with material families
manufactured consumer products
Manufactured Consumer Products
  • 21 different classifications (listed by codes) in NAICS
  • 473 product groups, with 1,500 sub-classifications under these types of codes
    • 2 codes: food, beverages, tobacco products
    • 3 codes: wood, paper, and printing products
    • 3 codes: metal products
    • Other codes: furniture, computers and electrical, plastics and rubber, and nonmetallic mineral products
consumer product types
Consumer Product Types
  • Consumable
    • Products that are digestible/eaten
    • Products that are chewed—gum, candy
  • Nonconsumable (Emphasis in textbook)
    • Hard good consumer products (durable goods)— vehicles, machine tools, chemicals, adhesives, etc.
    • Soft good consumer products—paper products, textile products, computer software
major material families
Major Material Families
  • Metals
  • Plastics
  • Woods
  • Ceramics
  • Composites

All manufacturing firms make

industrial stock from raw materials,

make new products from stock, or

assemble parts into new products

www.matweb.com provides a searchable database of more than 59,000 metals, plastics, ceramics, and composites

material processing categories
Material Processing Categories
  • Primary Processing
    • Concerned with making industrial stock
  • Secondary Processing
    • Used to make hard good consumer products
major material processing families metallic family
Major Material Processing FamiliesMetallic Family
  • Primary metal mfg.
  • Fabricated metal products mfg.
  • Machinery mfg.
  • Computer and electronic product mfg.
  • Steel wire drawing mfg.
  • Aluminum sheet, plate, and foil mfg.
  • Transportation equipment mfg.
major material processing families ceramic family
Major Material Processing FamiliesCeramic Family
  • Nonmetallic mineral product mfg.
  • Miscellaneous mfg.
  • Clay product and refractory mfg.
  • Pottery, ceramics, and plumbing fixture mfg.
  • Glass and glass product mfg.
major material processing families polymeric plastics family
Major Material Processing FamiliesPolymeric/Plastics Family
  • Plastics and rubber products mfg.
  • Chemical mfg.
  • Petroleum and coal products mfg.
  • Plastics, foil, and coated paper bag mfg.
  • Polystyrene foam product mfg.
  • Plastic bottle mfg.
  • Doll, toy, and game mfg.
major material processing families polymeric woods family
Major Material Processing FamiliesPolymeric/Woods Family
  • Furniture and related products mfg.
  • Wood product mfg.
  • Paper mfg.
  • Printing and related support activities
  • Engineered wood mfg.
  • Reconstituted wood mfg.
major material processing families composites family
Major Material Processing FamiliesComposites Family
  • Computer and electronic product mfg.
  • Transportation equipment mfg.
  • Chemical mfg.
  • Textile mfg.
  • Abrasive product mfg.
  • Semiconductor and other electronic component mfg.
process actions
Process Actions

A process action describes what happens when a manufacturing process changes the internal structure or the outward appearance of a material.

forming
Forming
  • Forming processes are used to change the size or shape of industrial stock
  • Hydraulic and mechanical pressure is normally used to squeeze or shape the material
  • There is no loss of weight or volume when material is formed
  • Bending, stretching, casting, pressing, and molding are all forming processes
product showcase 1
Product Showcase #1
  • KNC (Kinston Neuse Corporation)
    • Kinston, North Carolina
    • Subsidiary of Crown Equipment Corporation, New Bremen, Ohio
    • Manufacturer of electric lift trucks
forming process overview
Forming Process Overview
  • Manufacturing process showcased: 350 ton Cincinnati computer assisted numerical control (CNC) hydraulic press brake
flange forming and bending
Flange Forming and Bending

First operation: .312" metal stock is moved to the

press brake using an overhead crane

flange forming and bending23
Flange Forming and Bending

Second operation: The operator inserts the

workpiece into the press brake for each bend or fold

flange forming and bending24
Flange Forming and Bending

Third Operation: After all folds and bends are completed, the operator removes the workpiece using the overhead crane

separating processes overview
Separating Processes Overview
  • Separating processes can be classified by type of chip that is produced
  • Mechanical chip producing separating
  • Mechanical non-chip-producing separating
  • Non-mechanical separating
mechanical chip producing separating processes
Mechanical Chip Producing Separating Processes
  • Wedge cutting action is involved
  • There is a loss of volume with this process
  • Sawing is an example—the chip that is generated is waste (either lost or recycled for use in another application)
mechanical non chip producing separating processes
Mechanical Non-Chip-Producing Separating Processes
  • Wedge cutting action is involved
  • No chip is produced
  • There is no loss of material
  • Shearing of paper is an example
non mechanical separating processes
Non-Mechanical Separating Processes
  • These processes involve a cutting action
  • In some cases chips are generated; in others they are not
  • Etching or photochemical milling of metal are examples
product showcase 2
Product Showcase #2
  • Phoenix Fabrication Incorporated

Ayden, North Carolina

Large job shop known for high tolerance work involving computer assisted design and manufacturing to automated processing on the plant floor

separating process mechanical chip producing
Separating ProcessMechanical Chip-Producing

Equipment: TRUMPF 500 punch press

Process: Punching

product showcase 3
Product Showcase #3
  • NACCO Materials Handling Group, Inc.
    • Greenville, North Carolina
    • Subsidiary of NACCO Industries Incorporated
    • Manufacturer of frames and bodies for Hyster, Yale, and Sumitomo-Yale brand lift trucks
    • 17 locations worldwide
fabricating process metal inert gas mig welding
Fabricating ProcessMetal Inert Gas (MIG) Welding
  • MIG is also known as Gas Metal Arc Welding (GMAW)
  • MIG uses argon, helium, or carbon dioxide gas to reduce contamination and oxidation in the weld area
fabricating process metal inert gas mig welding35
Fabricating ProcessMetal Inert Gas (MIG) Welding
  • A consumable wire electrode is fed through the nozzle of a welding gun
  • The wire carries a positive charge and the workpiece is grounded (negative charge)
  • When the rod is held close to the metal, an arc is created and welding begins
product showcase 4
Product Showcase #4
  • Louisiana Pacific Company (LP)
    • Wilmington, North Carolina
    • Headquarters in Nashville, Tennessee
    • Manufacturer of building materials in North America, with facilities in the U.S., Canada, and Chile
    • 29 Manufacturing facilities in the U.S.
  • Product to be Showcased:Gang-Lam® Engineered Wood/Laminated Veneer (LVL)
conditioning process overview
Conditioning Process Overview

Manufacturing processes involved:

  • Grading
  • Scarfing
  • Layup of sheets
  • Hotpressing
  • Product Conveying
  • Quality inspection
  • Final inspection
layup of sheets
Layup of Sheets

This process involves laminating,pressing, and spraying of resin

product showcase 5
The Hammock Source

Greenville, North Carolina and Winterville, NC

Parent company for both The Original Pawley’s Island Rope Hammocks® and Hatteras Hammocks®

Product Showcase # 5
finishing process overview
Powder coating of metal hammock stand

Nordson powder coating system

Seven components in the system:

Overhead part conveyor

Wash and sealing unit

Electrostatic controlmodule

Powder feeder anddelivery pump

Spray guns

Powder recoverysystem

Curing ovens

Finishing Process Overview
coating metal parts
Coating Metal Parts

Electrostatic powder coating is used topaint the metal hammock frame