Engine Titanium Consortium - Center for Nondestructive Evaluation ...

More documents

Recommendations

Info

Probe Diameter, in Probe Diameter, cm Probe Radius of Curvature, in Probe Radius of Curvature, cm Transducer #1 0.92 2.34 5.77 14.66 Transducer #2 1.88 4.78 11.22 28.50 Transducer #3 2.80 7.11 16.70 42.42 Table 1. Designed transducer parameters. 7/16" Zone Size, 3-transducer inspection, 4" coverage Zone From To Transducer # Water path, in Water path, cm in in Maximum beam diameter within the zone, in 1 0.0000 0.4375 1 4.8 12.19 0.046 2 0.4375 0.8750 1 3.0 7.62 0.045 3 0.8750 1.3125 1 1.2 3.05 0.045 4 1.3125 1.7500 2 4.8 12.19 0.045 5 1.7500 2.1875 2 3.0 7.62 0.044 6 2.1875 2.6250 2 1.2 3.05 0.044 7 2.6250 3.0625 3 4.8 12.19 0.045 8 3.0625 3.5000 3 3.0 7.62 0.044 9 3.5000 3.9375 3 1.2 3.05 0.044 Table 2. Designed inspection scheme to achieve #1/2 FBH sensitivity throughout 4” of Ti 6-4 forging material. The scheme uses three transducers and has nine zones, each 7/16” wide.. Each transducer covers three zones using three different water paths. Phased Array Inspection Development Significant progress was made on the design of the phased array transducer that will be used to make a test of #1/2 FBH inspection sensitivity with currently available technology. In addition to discussion at the monthly conference call, a separate conference call was held with a subteam to discuss the transducer design that is being performed at ISU. The design has progressed to a state allowing discussion with transducer manufacturers for placement of an order by P&W. Figure 8 shows the most recent design for the F6 transducer that will allow focussing to a depth of 3.2 inches as required by the selection of the OEM forgings for inspection demonstration in this sub-task. Several modifications of the design have occurred and these were due primarily to compromises that had to be made from the ideal design to allow for the limitations of existing Quarterly Report – January 1, 2002 –March 31, 2002 print date/time: 6/6/2002 - 8:39 AM – Page 65
phased array instruments. The design modifications were made after extensive discussions by ISU with the primary equipment manufacturer. Figure 8. Schematic drawing of 128 element transducer for forging inspection. P&W has begun the purchase of the transducer with discussions with two manufacturers and will contact the third know manufacturer of phased array transducers at the start of the next quarter. Plans (April 1, 2002 – June 30, 2002): Complete calibration standards. Order 2” and 3” diameter transducers for complete 9 zone inspection. Continue inspection development with DAC tests for individual zones. Select supplier and place order for phased array transducer. First machining and sonic measurements will be performed for the surface finish study samples Quarterly Report – January 1, 2002 –March 31, 2002 print date/time: 6/6/2002 - 8:39 AM – Page 66
Page 1 and 2:
Engine Titanium Consortium Quarterl
Page 3 and 4:
Project 1: Task 1.1: Subtask 1.1.1:
Page 5 and 6:
findings for the first billet studi
Page 7 and 8:
measured P(L) curve, and tabulate t
Page 9 and 10:
1.2 1.0 0.8 V-DIE-A coupon "D" (axi
Page 11 and 12:
Attenuation (dB/in) . Waspalloy Att
Page 13 and 14:
Deliverables: Fundamental propertie
Page 15 and 16: Small Diameter Billet Assessment: A
Page 17 and 18: Under normal circumstances one woul
Page 19 and 20: Plans (April 1, 2002 - June 30, 200
Page 21 and 22: Project 1: Task 1.2: Subtask 1.2.1:
Page 23 and 24: system will be at GE, and evaluatio
Page 25 and 26: fixed-focus transducers that were n
Page 27 and 28: Back-Wall Scan FBH scan 20% 57% 49%
Page 29 and 30: 63% Back-Wall Scan 74% FBH scan 58%
Page 31 and 32: Figure 6. Noise and target amplitud
Page 33 and 34: Original Date Revised Date Descript
Page 37 and 38: Objective/Approach Amendments: Obje
Page 39 and 40: (a) Transducer is: 15 MHz 0.5”-Di
Page 41 and 42: FOM (std. units) 0.20 0.18 0.16 0.1
Page 43 and 44: Peak> Range of Ave. Range of Peak G
Page 45 and 46: The average noise characteristics,
Page 47 and 48: Noise C-scans through the “Flat S
Page 49 and 50: 4.0” Convex Block; Flat Side Insp
Page 51 and 52: % FSH Noise Measurements from flat
Page 53 and 54: Original Revised Description Status
Page 57 and 58: possible candidates. Development wo
Page 59 and 60: Forging Calibration Standard #1 1.7
Page 61 and 62: Surface Finish Studies The plans fo
Page 63 and 64: Figure 4. Beam diameter determinati
Page 65: size was adequate to support a 0.04
Page 71 and 72: Task 2: Task 2.1: Subtask 2.1.1: In
Page 73 and 74: Objective/Approach Amendments: Obje
Page 75 and 76: Figure 2. A preliminary design of t
Page 77 and 78: Publications and Presentations: Dat
Page 79 and 80: Survey of common practices (industr
Page 81 and 82: include air drying, oven drying, an
Page 83 and 84: aluminum oxide blasting is conceali
Page 89 and 90: the methodology. These may be thoug
Page 91 and 92: model parts across 17 micrograph pl
Page 93 and 94: Z Y X Figure 4. Angle View of Void
Page 97 and 98: A report documenting the relative e
Page 101 and 102: naturally occurring flaws in forgin
Page 103 and 104: Milestones: Revised dates of TBD ar
Page 109 and 110: 7a-7l 6 8 9 10 Key additional ingre
Page 111 and 112: incorporating the results of the pr
show all

Engine Titanium Consortium - Center for Nondestructive Evaluation ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?