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METHOD FOR CONSTRUCTING IMPINGEMENT/EFFUSION COOLING FEATURES IN A COMPONENT OF A COMBUSTION TURBINE ENGINE, AND TRANSITION DUCT OF A COMBUSTION TURBINE ENGINE WITH IMPINGEMENT/EFFUSION COOLING FEATURES CONSTRUCTED ACCORDING TO SAID METHOD
METHOD FOR CONSTRUCTING IMPINGEMENT/EFFUSION COOLING FEATURES IN A COMPONENT OF A COMBUSTION TURBINE ENGINE, AND TRANSITION DUCT OF A COMBUSTION TURBINE ENGINE WITH IMPINGEMENT/EFFUSION COOLING FEATURES CONSTRUCTED ACCORDING TO SAID METHOD
Method for constructing impingement/effusion cooling features in a component of a combustion turbine engine is provided. A pocket 102 may be arranged between an outer wall 104 and an inner wall 106 of the component. A lasing device 108 allows drilling through the component to form an effusion hole 110. The lasing device further allows welding closed an opening 117 formed at outer wall 104 of the component during the drilling with the lasing device through the component. Lasing device 108 further allows drilling through outer wall 104 of the component to form an impingement hole 118 for the impingement/effusion cooling feature. The proposed methodology in a multi-panel arrangement, for example, eliminates a need of having to pre-drill such holes in individual panels prior to the bonding and forming of the component, which overcomes various drawbacks commonly associated with such pre-drilling.
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