12 октября, 2015 
Pokraskin The paper deals with the response of a high strength, single component adhesive that cures in absence of oxygen (anaerobic). Its commercial name is LOCTITE648®, a specifically developed product for cylindrical joints with or without interference. The typical product performances are reported in [16].
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Figure 1. Hub specimens, with ER=0.4 (a), ER=0.8 (b), ER=1.3 (c), ER=1.7 (d); shaft sample to be press-fitted into the hubs (e) (all dimensions are in mm).
As exposed above, the effect of ER was studied also for adhesively bonded specimens, without interference, namely slip-fitted joints (SFJs). For this purpose, pin-and collar samples were properly machined: their proportioning and coupling diameter values comply with [13]. The only dimension to be changed was the overall length of the hubs, in order to retrieve different ERs. In this case, only the two extreme levels of the ER were considered, corresponding to the lengths of 22mm and 5.5mm. Again, ten pieces per type were manufactured, for a total of 20 pins and 20 collars.
All the shafts and the hubs, both for HJs and for SFJs, were made of C40 UNI EN 10083-2 steel [17], without any surface treatment. Specimens were machined by means of a CNC lathe, with final grinding treatment in order to reduce surface roughness and to accomplish tolerance requirements.
Опубликовано в рубрике 