tailieunhanh - CLASSIFICATION System

Classification and coding practices are as old as the human race. They were used by Adam, as recorded in the Bible, to classify and name plants and animals, by Aristotle to identify basic elements of the earth, and in more modern times to classify concepts, books, and documents. | CHAPTER 31 CLASSIFICATION SYSTEMS Dell K. Allen Manufacturing Engineering Department Retired from Brigham Young University Provo Utah PART FAMILY Process Taxonomy 970 CLASSIFICATION Process Code 973 AND CODING 951 Process Capabilities 973 Introduction 951 Application 952 FABRICATION EQUIPMENT Classification Theory 954 CLASSIFICATION 974 Part Family Code 955 Introduction 974 Tailoring the System 962 Standard and Special Equipment 976 ENGINEERING MATERIALS Equipment Classification 976 TAXONOMY 962 Equipment Code 977 Introduction 962 Equipment Specification Material Classification 962 Sheets 978 Material Code 964 Material Properties 965 FABRICATION TOOL Material Availability 966 CLASSIFICATION AND Material Processability 966 CODING 981 Introduction 981 FABRICATION PROCESS Standard and Special TAXONOMY 967 Tooling 982 Introduction 967 Tooling Taxonomy 982 Process Divisions 969 Tool Coding 982 Tool Specification Sheets 984 PART FAMILY CLASSIFICATION AND CODING Introduction History Classification and coding practices are as old as the human race. They were used by Adam as recorded in the Bible to classify and name plants and animals by Aristotle to identify basic elements of the earth and in more modem times to classify concepts books and documents. But the classification and coding of manufactured pieceparts is relatively new. Early pioneers associated with workpiece classification are Mitrafanov of the USSR Gombinski and Brisch both of the United Kingdom and Opitz of Germany. In addition there are many who have espoused the principles developed by these men adapted them and enlarged upon them and created comprehensive workpiece classification systems. It is reported that over 100 such classification systems have been created specifically for