शीट मेटल ऑपरेशनमध्ये दोन कडा ______ ने जोडल्या जातात.

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ALP CBT 2 Fitter Previous Paper: Held on 23 Jan 2019 Shift 3
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  1. खोबणी
  2. शिवण
  3. हेमिंग
  4. नमन

Answer (Detailed Solution Below)

Option 2 : शिवण
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स्पष्टीकरण:

खोबणी

  • शीट मेटलच्या रचनात, लाइट आणि मीडियम गेज मेटल शीट जोडताना यांत्रिक शिवणांचा वापर केला जातो.
  • खालील प्रकारचे शिवण आहेत:
    • खोबणी शिवण
    • पिट्सबर्ग शिवण
    • डोव्हटेल शिवण
    • साधा डोव्हटेल शिवण
    • बाहेरील कडा डोव्हटेल शिवण
    • बीड डोव्हटेल शिवण
    • दुहेरी शिवण
    • बीड शिवण
    • लॅप शिवण
    • स्लिप संयुक्त शिवण

हेमिंग

  • हेम म्हणजे फोल्ड करून बनवलेली धार किंवा सीमा.
  • हेमिंग प्रक्रियेत (याला सपाट करणे देखील म्हणतात), शीटची धार स्वतःवर दुमडली जाते.
  • त्यामुळे भागाचा कडकपणा वाढतो.
  • हे तीक्ष्ण कडा काढून टाकते आणि काठाचे नुकसान/पोशाख प्रतिबंधित करते.
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