Macro Defects in Steel - Tool Steel Defects

Tool Steel Defects

13/3-in.-diam gage - Tool steels - Fractography - Heat treatment defects
A die break down - Tool steel defects
A nitrided punch - Tool steel defects
A quench crack promoted by the presence of a deep, sharp stamp mark in a die made of AISI S7 tool steel - Heat treatment defects - Fractography
A2 stamping die – broke due to unintentional carburization - Fractography
AISI 06 graphitic tool steel punch machined from centerless - Heat treatment defects - Fractography
AISI D2 powder metallurgy die component that melted - Heat treatment defects - Fractography
AISI H13 mandrel used to pierce and extrude brass that failed after 298 pushes, about 30% of its expected life - Fractography
AISI M2 roughing tool that cracked just after heat treatment - Heat treatmnet defects - Fractography
AISI Ol tool steel die that cracked during oil quenching - Heat treatment defects - Fractography
AISI Ol tool steel ring forging that cracked during quenching - Heat treatment defects - Fractography
AISI S5 tool steel hammer head that cracked during heat treatment - Heat treatment defects - Fractography
AISI S7 punch that had a low surface hardness after heat treatment - Heat treatment defects - Fractography
AISI W1 piston - Fractography
AISI W2 carbon tool steel (1.05% C) component that cracked during quenching - Heat treatment defects - Fractography
AISI W2 cold heading die - Fractography
AISI Wl tool steel concrete roughers that failed after short service - Fractography
Abrasive (erosion) wear on the cutting edge of a fine blanking punch - Tool steel defects
Abusive grinding - Tool steel defects
Acorn milling cutters - Tool steels - Fractography - Heat treatment defects
Alligatoring - 9Cr-1Mo steel - Rolling defects
Boring cutters - Tool steels - Fractography - Heat treatment defects
Boring tool - Tool steels - Fractography
Broken A2 punch - Not tempered - Heat treatment defects
Burn mark - Polishing defects
Cam - Tool steels - Fractography - Heat treatment defects
Carbide pull-outs - Polishing defects
Carbon tool steel dies - Tool steels - Fractography
Circular spall in hardened steel roll - Fractography
Classification of sorts and causes of failures within the Tool Failures Register
Classification of surface imperfections - Polishing defects
Classification of tool failures
Coil spring made from AISI H12 tool steel that cracked after heat treatment - Fractography
Comet tails - Polishing defects
Cooling cracks - Tool steels - Heat treatment defects
Cr-plated A2 blanking die - Coating defects
Cr-plated A2 blanking die - Coating defects
Crack - Polishing defects
Crack initiation at the sharp radius of a plastic mould die - Steel tool defects
Crack present in hot work die steel before nitriding shown by macro-etching - Heat treatment defects
Cracked in sharp cornes - Tool steels - Fractography - Heat treatment defects
Cracked roll - Tool steels - Fractography - Heat treatment defects
Cracks in the edge of the tool - Tool steels - Fractography - Heat treatment defects
D2 steel draw die insert – Incipient melting - Heat treatment defects
Damaged die parts on different dies at different location under similar production condition - Tool steel defects
Damaged ejector - Tool steel defects
Dark rim around both the surface and the crack - Heat treatment defects
Design overload - die - Tool steels - Fractography
Die and punch - Tool steels - Fractography
Die casting dies corrosion - Tool steel defects
Die cracked in hardening - Tool steels - Fractography - Heat treatment defects
Die cracked in heat-treatment - Tool steels - Fractography
Die damages on a moving die insert - Tool steel defects
Die failed in service - Tool steels - Fractography - Heat treatment defects
Die made from AISI Ol tool steel that was found to be cracked after heat treatment - Heat treatment defects - Fractography
Die made of high-carbon - Tool steels - Fractography
Die made of high-speed steel - Tool steels - Fractography
Die were tempered after the quench - Tool steels - Fractography - Heat treatment defects
Discoloration/staining - Polishing defects
EDM caused defects at holes in this AISI A4 primer cup plate (sectioned) - Machining defects
EDM copper and graphite electrodes - EDM machining defects
EDM layers thickness - Orvar Supreme tool steel - EDM machining defects
Edge burst - Forging defects
Effect of EDM on the tool surface - Tool steel defects
Effects of hard machining on surface quality of a high-strength tool steel - Tool steel defects
Ejection die - Tool steel defects
Erosion damage from the bore to just below the outside-diameter surface of an AISI HI3 nozzle - Fractography
Erosion failure of a high alloyed cold work tool steel - Steel tool defects
Example of a successful polishing treatment - Polishing defects
Example of detailed analysis and report of results by laboratory - Tool steel defects
Examples of the microstructure of AISI M2 high-speed steel - Heat treatment defects - Fractography
Excessive quenching stress - Tool steels - Fractography - Heat treatment defects
Excessive quenching-stress - Tool steels - Fractography
Excessive stress - Tool steels - Fractography
Extent of the heat-affected zone produced during flame cutting - Heat treatment defects
Failed AISI H26 exhaust-valve punch - Fractography
Failed AISI S7 jewelry striking die - Heat treatment defects - Fractography
Failed over-austenitized A2 rotary knife - Fractography
Failed over-austenitized A2 rotary knife - Heat treatment defects
Failure caused by improper quenching - Heat treatment defects - Fractography
Failure due to a band of carbides - Fractography
Fatigue cracks in 1 1/4-in.—diam hollow rock-drill steel - Tool steels - Fractography
Feed rollers - Tool steels - Fractography
Fissure frequency - Tool steels - EDM machining defects
Fixture made from AISI Ol tool steel that cracked during oil quenching - Heat treatment defects - Fractography
Flakes - Tool steels - Heat treatment defects
Flame impingement – Local melting - Heat treatment defects
Foreign material - Polishing defects
Forge burst - Forging defects
Forging dies - Tool steel defects
Forging failure at the outer surface of a round bar - Steel tool defects
Forging laps in large roll - Forging defects
Fracture of high-speed steel bar after single quench - Tool steels - Fractography - Heat treatment defects
Fractured pin and gripping cam made from AISI S5 tool steel - Heat treatment defects - Fractography
Fractured section of an AISI W2 die insert that cracked during rehardening - Fractography
Friction-Induced martensite at adge of cracked air-wear scrap chopper knife - Fractography
Front view of an AISI O1 tool steel die that cracked during oil quenching - Heat treatment defects - Fractography
Geometric pattern - Tool steels - Fractography - Machining defects
Grain boundary carbides in 1.2379 steel - Steel tool defects
Grinder's scorch - Tool steels - Fractography - Machining defects
Grinding cracks - 0.70C-0.40Si-2.15Mn-1.15Cr-1.15Mo steel - Machining defects
Grinding cracks - Machining defects
Grinding cracks - Tool steels - Fractography - Machining defects
Grinding cracks - Tool steels - Fractography - Machining defects
Grinding cracks and holes - Tool steels - Fractography - Machining defects
Grinding cracks caused by failure to temper a part - Machining defects - Fractography
Grinding cracks-3% Cr cold work tool steel - Machining defects
Grinding cracks-network - Machining defects
Grinding defect - Tool steels - Machining defects
Grinding defect I - Tool steels - Fractography - Machining defects
Grinding defect II - Tool steels - Fractography - Machining defects
Grinding failure of 1.2842 tool steel - Steel tool defects
Gripper die - Tool steels - Fractography
Gripper die - Tool steels - Fractography - Heat treatment defects
Groove (scratches) - Polishing defects
Groove (scratches) - Polishing defects
Haze - Polishing defects
Header die made from AISI Wl tool steel that failed prematurely in service - Heat treatment defects - Fractography
Header dies used for hot-heading of bolts - Tool steels - Fractography
Heading die - Tool steels - Fractography
Heat checked surface of failed hot work die steel after extensive service - Fractography
High-speed steel (18-4-1 type) wheel-forming tool - Tool steels - Fractography - Heat treatment defects
High-speed steel reamer - Tool steels - Fractography - Heat treatment defects
Hobbing die - Tool steels - Fractography - Heat treatment defects
Hobbled bullet - Tool steels - Fractography - Heat treatment defects
Hole - Polishing defects
Hole in the ingot surface - Ingot defects
Holes/pull-out - Polishing defects
Improper EDM caused failure of this AISI A2 blanking die - Machining defects
Improper feeding of stock - Tool steels - Fractography
Incipient melting - Heat treatment defects
Incipient melting of M2 high-speed steel - Heat treatment defects
Lap in 8 Lb sledge – AISI S4 tool steel - Fractography
Letter stamp die - Tool steels - Fractography
Line spall in haedened steel roll - Fractography
Localized melting at the surface of a part made from AISI M2 tool steel - Heat treatment defects - Fractography
Longitudinal splitting - Heat treatment defects
Low hardening temperature I - Tool steels - Fractography - Heat treatment defects
Low hardening temperature II - Tool steels - Fractography - Heat treatment defects
Macroetched (10% aqueous nitric acid) face of a cutter blade made from AISI S7 steel - Fractography
Manganese oil-hardening steel die which cracked in heat—treatment - Tool steels - Fractography - Heat treatment defects
Milling cutter - Tool steels - Fractography
Milling cutters - Tool steels - Fractography
Moil point made of AISI Wl tool steel that exhibited a rough, scaled surface after heat treatment - Heat treatment defects - Fractography
No heat treatment - Heat treatment defects
Nut tap failures - Tool steels - Fractography
Orange peel - Polishing defects
Orange peel - Polishing defects
Parallel grinding cracks - Tool steels - Fractography - Machining defects
Peak/raising - Polishing defects
Pipe - Ingot defects
Pits on polished face of AISI A2 tool steel mold - Polishing defects
Pits on polished face of AISI A2 tool steel mould - Polishing defects
Pitting - Polishing defects
Pitting - Polishing defects
Pitting on mold cavity - Tool steel defects
Plastic mold die made from AISI S7 tool steel that was found to be cracked before use - Machining defects - Fractography
Plug gage - Grinding cracks - Tool steels - Fractography - Machining defects
Pneumatic chisel - Tool steels - Fractography
Pneumatic chisel - Tool steels - Fractography
Pneumatic chisels - Tool steels - Fractography
Pneumatic descaling chisel - Tool steels - Fractography
Pneumatic rivet set - Tool steels - Fractography
Polishing defect classification
Poor design - Tool steels - Fractography
Poor design - Tool steels - Fractography
Portion of an AISI A8 ring forging that cracked (arrows) after forging and annealing - Forging defects - Fractography
Premature tempering accounted for the cracking during treatment of this ring die - Tool steels - Fractography - Heat treatment defects
Punch - Tool steels - Fractography
Punch made of AISI S7 tool steel that cracked during quenching - Heat treatment defects - Fractography
Punch tip - Tool steels - Fractography
Punches - Tool steel defects
Punches, 2 1/4-in,-diam - Tool steels - Fractography - Heat treatment defects
Quench crack in W2 water-hardening part - Heat treatment defects
Quench stress cracking of 1.2343 steel - Steel tool defects
Quenched from an excessively high temperature - Tool steels - Fractography - Heat treatment defects
Quenching crack - Tool steels - Fractography
Quenching crack - Tool steels - Fractography - Heat treatment defects
Rail-ending blade - Tool steels - Fractography - Heat treatment defects
Rating chart for the macroscopic evaluation of the corrosive attack - Tool steel defects
Reamer failure - Tool steels - Fractography
Relief - Polishing defects
Relief - Polishing defects
Roll burst - Rolling defects
Roll shell - Tool steels - Fractography
Roll tears - Tool steels - Rolling defects
Rotary slitter knife - Tool steels - Fractography - Heat treatment defects
Rough-machined EDM surface - Orvar 2 steel - EDM machining defects
Runner block made from a proprietary hot-work tool steel - Fractography
S7 angle shear blade - Grinding cracks - Machining defects
Section from a spark-machined surface showing changes in structure - Rigor tool steel - EDM machining defects
Segregation in 3 x 4-in. bar of carbon tool steel - Ingot defects
Shaft fatique failure - Tool steels - Fractography
Sharp corners - Tool steels - Fractography
Sharp corners - Tool steels - Fractography - Heat treatment defects
Shear knife - Tool steels - Fractography
Si-Mn-Mo tie plates punches - Heat treatment defects
Soft steel washers - Tool steels - Fractography
Spalled corners - Tool steels - Fractography - Heat treatment defects
Spalled section of hardened steel roll - Fractography
Spike-heading dies - Tool steels - Fractography
Stress cracks and thermal fatigue cracks - Tool steel defects
Structural shear blade - Tool steels - Fractography
Surface cooling cracks - Tool steels - Heat treatment defects
Surface laps - Rolling defects
Tensions cracks II - Ingot defects
The flange edge of a roll made from AISI D2 tool steel that chipped off during its initial use - Fractography
The surface of an AISI A4 primer cup plate showing spoiling at one of the holes made by EDM - Machining defects - Fractography
Thermal fatigue cracks in new die steels - Fractography
Thread chaser - Tool steels - Fractography
Thread chaser - Tool steels - Fractography - Heat treatment defects
Threaded part made from AISI W2 tool steel that cracked during quenching - Heat treatment defects - Fractography
Thumb—nail cracks on the chisel I - Tool steels - Fractography - Heat treatment defects
Thumb—nail cracks on the chisel II - Tool steels - Fractography - Heat treatment defects
Torsion twist failure AISI S7 super-duty dragster axle - Heat treatment defects
Two AISI A6 tool steelvparts that shattered during finish (abusive) grinding - Machining defects - Fractography
Two sharp corners - Tool steels - Fractography - Heat treatment defects
Two shear knives made from AISI H13 tool steel - Fractography
Two views of an AISI S1 tool steel cutter die that cracked and spoiled after regrinding - Machining defects - Fractography
Under-austenitization - Heat treatment defects
Under-austenitization – L6 punch - Heat treatment defects
Undesired graphite - Heat treatment defects
Unfavorable design - Tool steels - Fractography - Heat treatment defects
Unintentional carburization - Heat treatment defects
Unintentional carburization - Heat treatment defects
Unintentional carburization caused this S7 plastic mold die to fail - Fractography
Unsuccessful weld repair of the die - Tool steels - Fractography
Waviness - Polishing defects
Wrong haredening media - Tool steels - Fractography - Heat treatment defects