Investigating the cricket bat pressing process
Lead investigators David Curtis, Special Projects Manager, CSER; Dave Schorah (CSER PhD student)
Funder Gunn and Moore
Dates December 2011 - June 2012
Investigate and quantify the performance of the GM blade pressing process on its cricket bats. Three specific tasks were undertaken, and we used 36 clefts of a similar willow grade.
- measurement of cleft hardness, based on the Janka hardness test, unpressed and then pressed;
- an impact test in a ball drop rig to measure rebound performance (coefficient of restitution) of the pressed clefts; and
- measurement of pressure applied by the two press machines using Fuji Prescale measurement film, and compared different pressing speeds.
The study has given GM and CSER unique insight into the pressing process, and will help not only in optimising the current pressing process, but also provide input to the design of a new press machine to replace one that is 100 years old.