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Precision Machining as it Relates to Molds, Dies and Build to Print Tooling

Die Repair for the Automotive Industry

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B&J Specialty, Inc. operates a modern facility housing state-of-the-art computer systems, technologically advanced high speed CNC machinery, precision measuring instruments, as well as heavy lifting equipment that gives our employees the ability to satisfy the diversified needs of our customers.

We repaired the die pictured here, for a customer in the automotive industry. Measuring 5' in length, 4' in width, 3' in height, and weighing 10,000 lbs, we first disassembled the die and conducted a full engineering evaluation and mechanical inspection to determine the extent of the rework. Utilizing a combination of handwork, CNC milling, and surface grinding equipment, we restored the D2 die steel components to their original geometry, keeping within exacting ± 0.0005" tolerances. Additional operations consisted of heat treating, polishing, and reassembling it to full working order. At each step of the process, we utilized advanced scanning equipment to verify the dimensional integrity.

Our combination of advanced skills and equipment enabled us to restore this die to full production status in one week's time. If you would like more information about this project or are interested in learning how our die repair services can benefit your manufacturing operation, Contact Us us today.

Highlights of this Automotive Industry Project

Die Repair Capabilities Applied/Processes
Engineering Evaluate – Mechanical Inspection
Handwork, Grind & Mill Block
Heat Treating
Equipment Used to Repair Die
Scanner, Lagun Manual Mill, Makino V55 3-Axis CNC Machine, Cress Electric Furnace, Okamoto Surface Grinder, V55 3-Axis CNC Machine, CMM
Die Dimensions
Length: 5'
Width: 4'
Height: 3'
Die Weight: 10,000 pounds
Tightest Tolerances
± 0.0005"
Material Used
In process testing/inspection performed
Dimensional Inspection, Visual Inspection, Functionality
Industry for Use
Delivery/Turnaround Time
1 Week
Delivery Location
Kalida, OH
Standards Met
Customer Specifications
Product Name
Die Repair

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