Blind hole or through hole, which is better?

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SUMMARY

The discussion centers on the advantages of using through holes versus blind holes for joining two plates with bolts. Through holes are favored for their cost-effectiveness in manufacturing, as they eliminate the need for tapping and separate thread cutting operations. Additionally, through holes typically provide superior clamping force depending on the material used. Conversely, blind holes offer a cleaner aesthetic and are necessary when access to the backside of the plate is limited.

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  • Understanding of mechanical fastening techniques
  • Knowledge of material properties affecting clamping force
  • Familiarity with manufacturing processes for hole creation
  • Basic principles of mechanical design and assembly
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  • Research the manufacturing processes for creating through holes and blind holes
  • Explore the effects of different materials on clamping force in mechanical assemblies
  • Learn about aesthetic considerations in mechanical design
  • Investigate best practices for selecting fastening methods in engineering applications
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Mechanical engineers, manufacturing professionals, and anyone involved in the design and assembly of mechanical structures will benefit from this discussion.

cbor0023
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Hi,

I had to build an apparatus where I had to join two plates by bolts. I used through holes. Is there any reason why through holes would be better than blind holes? I have an interview and might be asked such question:/
 
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thur hole
cheap to manufacturer
no tap required, no separate thread cutting operation required
depending upon the material, clamping force of nut and bolt is USUALLY superior to that of tapped i.d.

in my opinion only plus side of tapped blind hole is less foot print..no ugly nut and bolt threads sticking out...also if access to back side of plate is issue..only choice is to tap the plate..
 

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