| US 7,588,102 B2 | ||
| High impact resistant tool | ||
| David R. Hall, 2185 S. Larsen Pkwy., Provo, Utah 84606 (US); and Ronald B. Crockett, 2185 S. Larsen Pkwy., Provo, Utah 84606 (US) | ||
| Filed on Mar. 27, 2007, as Appl. No. 11/691,978. | ||
| Application 11/691978 is a continuation in part of application No. 11/673634, filed on Feb. 12, 2007. | ||
| Application 11/673634 is a continuation in part of application No. 11/668254, filed on Jan. 29, 2007, granted, now 7,353,893. | ||
| Application 11/668254 is a continuation in part of application No. 11/553338, filed on Oct. 26, 2006. | ||
| Prior Publication US 2008/0099251 A1, May 01, 2008 | ||
| Int. Cl. E21B 10/46 (2006.01) | ||
| U.S. Cl. 175—434 [175/425; 175/435; 299/110; 51/309; 76/108.2] | 20 Claims |
| 1. A high impact resistant tool, comprising:
a sintered body of diamond or diamond-like particles in a metal matrix bonded to a cemented metal carbide substrate at a non-planar
interface; and
a working surface of the body comprising at least one region far enough away from the non-planar interface that during high
pressure, high temperature processing a restricted amount of metal from the substrate reaches the region, the amount comprising
5 to 0.1 percent of the region by volume, resulting in the region comprising a high density of superhard particles;
wherein at least 99 percent of interstitial voids between particles comprise a catalyzing material.
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