उत्पादन और मैन्यूफैक्चरिंग से संबंधित प्रश्न

Study Notes - Document Summary

• Document Title: Fitter (Trade Theory) - Hindi
• NSQF Level: 5
• Year: 1st Year, Volume II
• Sector: Production & Manufacturing
• Document Details: This document is a part of a training course for fitters, focusing on trade theory in Hindi. It outlines the curriculum and content for the 1st Year (Volume II) and lists the syllabus contents. It also includes the preface and introduction for the publication and information about the author and publisher.
• Structure: The document appears to be a detailed manual/syllabus with multiple modules/chapters related to various aspects of the fitter trade. Each module likely contains specific exercises and practical applications.

Module 1: Drilling

• Subtopic: Types of drills, their specific uses and their parts.
• Content Details: Includes understanding of different drill types (flat drills, twist drills), their components (tang, body, flutes, land/margin, body clearance, web), and their suitability for various materials.

Module 2: Fitting Assembly

• Subtopic: Interchangeability, fits, and their classification.
• Content Details: Explains the importance of interchangeability in engineering for mass production. Describing various fits (clearance, transition, interference) and the BIS system of limits and fits.

Module 3: Turning

• Subtopic: Safety precautions during lathe operation, lathe machine specifications.
• Content Details: Outlines safety procedures to follow before, during, and after lathe operations, including handling tools and equipment. Also, specifications for the lathe machine itself and the parts and processes used in a turning operation.

Module 4: Basic Maintenance & Additional Modules

• Subtopic: Discusses the critical aspects of routine maintenance, preventive procedures, including lubricant usage, equipment inspection, and maintaining records.
• Content Details: Covering topics like (periodic) inspection, preventive maintenance, and identification of causes for assembly failures.

Detailed Modules:

• Dismounting Chuck from Spindle

  • Specific process for removing a chuck from a threaded or tapered spindle.

• External Threading

  • Detailed method for cutting an external thread using dies and die stocks.

• Holding Job Between Centres

  • Preparing for turning operations, including setting and clamping procedures for the job between centers.

• Knurling

  • Techniques for creating knurled patterns on cylindrical surfaces using various tools.

• Scraping Cylindrical Surfaces

  • Describes techniques and components involved in scraping various surfaces.

• Standard Marking system for Grinding Wheels -Explains the importance of proper markings and how to specify grinding wheels based on standards.

• Standard Tapers & Screw Thread

  • Discusses several standard tapers (with illustrations/drawings), their uses, specifying and naming them, along with identifying self-holding vs self-releasing features. -Provides details on screw threads, various forms (e.g., square, trapezoidal, buttress, acme, worm), their uses, and how to locate the needed information for selecting and ordering.

• Tool Setting -Explains the process of accurately setting cutting tools in a toolpost for different machining operations.

• Tool Selection -Explores selection criteria for specific materials and operations, focusing on the properties of tools.

• Using various Gauges -Discusses methods of using different gauges.

• Use of Comparators for various applications -Describes different types of comparators and their uses.

• Measuring Internal Holes

  • Outlines different techniques involving tooling and procedures for measuring internal holes.

• Use tools for inspection(Gadgets)

  • Lists the types of inspection tools (gadgets).

• Maintaining Records

  • Emphasizes the importance of maintenance records for analysis and future reference.

• Practical Application Examples

  • Provides specific example calculations for determining tool speeds, feeds, and other relevant parameters for various materials.

इस क्विज़ में हम प्रोडक्शन और मैन्यूफैक्चरिंग सेक्टर के महत्वपूर्ण पहलुओं पर चर्चा करेंगे। आप यह जान सकेंगे कि उत्पादन प्रक्रिया के दौरान नकारात्मक पहलू क्या हैं और नवाचार का महत्व क्या है। यह आपके ज्ञान को विस्तारित करने के लिए एक अच्छा अवसर है।