______ मध्ये छिद्र पाडण्यासाठी एक पोकळ छिद्रक वापरले जाते.

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  1. चामडे
  2. ओतीव लोखंड
  3. सोने 
  4. सौम्य पोलाद

Answer (Detailed Solution Below)

Option 1 : चामडे
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स्पष्टीकरण:

छिद्र​ण 

  • सामग्री काढण्याची प्रक्रिया ज्यामध्ये छिद्रक क्रिया धातूच्या पत्र्यांच्या अंतिम तुकड्यातून सामग्री काढून टाकते.
  • येथे छिद्र इच्छित उत्पादन आहे, आणि छिद्र पाडण्यासाठी सामग्री बाहेर टाकली जाते आणि कचरा ठरते.

पोकळ छिद्रक

  • या छिद्रकांचा वापर गॅस्केट साहित्य, चामडे, रबर, कॅनव्हास, पुठ्ठा, प्लास्टिक आणि इतर मऊ साहित्यामध्ये गोल छिद्र पाडण्यासाठी केला जातो.
  • धारेची विशेष रचना छिद्रकाच्या आत सामग्रीचे जॅमिंग प्रतिबंधित करते.
  • विस्तारित कार्यपद्धतीसाठी धार इंडक्शन कठोर आहे.
  • ते फक्त 2 मिमी ते 25 मिमी व्यासाचे छोटे छिद्र कापण्यासाठी तयार केले जातात.

F1 Krupalu Madhu 10.09.20 D2

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