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According to the data from the Central Labor Accident Prevention Association (Chuo Rosai Bo), there were 3,755 labor accidents in the metal products manufacturing industry in fiscal year 2020, with 884 of these accidents related to metal processing machinery, accounting for approximately 24% of the total. (Source: Central Labor Accident Prevention Association Labor Accident Analysis Data) Furthermore, the most common type of labor accident was "caught in or between" with 1,237 cases (about 33%), followed by "falling or flying objects" with 459 cases (about 12%), indicating a trend that aligns with the types of troubles commonly occurring in machining. The rate of NC (Numerical Control) implementation in machine tools is high, and it can be estimated that human errors such as NC data mistakes and setting errors are significant contributing factors. With NCVIEW, various troubles such as NC data format errors, tool setting mistakes, and interference accidents can be pre-validated and improved.

The NC macro program is particularly useful in cases where there are many types of processing (similar shapes but with slightly different dimensions). For example, it allows for the efficient creation of programs that can process shapes with different dimensions simply by setting dimension values in macro variables, as shown below. Editing the NC program each time reduces work efficiency and increases the likelihood of errors. By using macro programs, you can process complex shapes such as plate cams through control statements like IF and WHILE, arithmetic operations, trigonometric functions, and G65 subroutine calls. If there is a sequence that is always commanded in the same way before and after tool changes, it is common to prepare a tool change macro to avoid input errors. For instance, you can set M66 as a macro call for M codes and execute the tool change macro program with the command TxxM66. Macros are also used for tasks such as determining standard processing surfaces and probe movements for position verification. NCVIEW, with its macro debugger, enables accurate simulation of these macro operations and provides an efficient debugging environment, improving the verification efficiency of processing through macros.

There may be mistakes in NC data or manual operations that cause tools to collide with workpieces, jigs, or machine structures, which can lead to spindle damage and is considered a dangerous accident, also referred to as tool interference. Additionally, various factors such as the type of workpiece, the number of cutting edges, material and shape of the tool, coolant, cutting speed, rotation speed, and poor chip removal can also lead to tool breakage. Preventing and predicting these issues requires the expertise of skilled metalworking professionals, but the tool and holder interference check in 'NCVIEW' makes this possible. [Causes of Trouble] ■ Mistakes in NC data ■ Manual operations causing tools to collide with workpieces, jigs, or machine structures → A dangerous accident that can lead to spindle damage, known as tool interference ■ Various factors such as the type of workpiece, the number of cutting edges, material and shape of the tool, coolant, cutting speed, rotation speed, and poor chip removal → Tool breakage *For more details, please refer to the PDF document or feel free to contact us.

Internal diameter cutting on a lathe makes it difficult to confirm the tool's entry, often resulting in holder interference. "NCVIEW" detects such interferences. When exploring methods to avoid interference, you can observe the tool's movements for internal diameter processing and the state of the workpiece in real-time while displaying the workpiece cross-section on the turning solid screen. [Causes of Trouble] - Internal diameter cutting on a lathe makes it difficult to confirm the tool's entry. - Holder interference occurs. *For more details, please refer to the PDF document or feel free to contact us.

When tool or holder interference and structural interference occur, it can even damage the spindle. The spindle is a crucial component that determines machining accuracy, making it one of the troubles we particularly want to avoid in machining accidents. Repair costs are high, and during the repair period, the machine cannot operate, resulting in significant economic losses. The 'NCVIEW' machine structure simulation is helpful for checking interference of the spindle and table, as well as for checking axis stroke over. [Causes of Trouble] ■ Tool or holder interference, structural interference 　→ Can even damage the spindle ■ Repair costs are high, and during the repair period, the machine cannot operate, leading to significant economic losses. *For more details, please refer to the PDF document or feel free to contact us.

Even when proceeding carefully with drilling and tapping operations, processing troubles often occur where the tool breaks into the workpiece. When a tool breaks, it becomes necessary to either remake the workpiece, ask a skilled worker to remove it, or melt it away with discharge machining, which results in significant losses in terms of delivery time, cost, and quality. To shorten working hours and ensure quality, 'NCVIEW' is useful as it automatically verifies and reports on hole processing thoroughly. [Causes of Troubles] <Drilling and Tapping> ■ Processing troubles often occur where the tool breaks into the workpiece. ■ It is necessary to remake the workpiece, ask a skilled worker to remove it, or melt it away with discharge machining. 　→ This results in significant losses considering delivery time, cost, and quality. <Processing with Many Holes> ■ It becomes unclear which holes have been checked, leading to overlooked holes. ■ Visual confirmation alone always raises concerns. *For more details, please refer to the PDF document or feel free to contact us.

Chip removal is an important issue in drilling processes, but the situation can change depending on factors such as the workpiece, tools, coolant, and cutting conditions. When chips get clogged, it can cause the tool to vibrate radially, negatively affecting machining dimensions and tool life, and there is also a risk of damaging the product. With 'NCVIEW', various troubles such as NC data format errors, tool setting mistakes, and interference accidents can be pre-verified and improved. [Causes of Troubles] ■ The situation changes depending on the workpiece, tools, coolant, and cutting conditions ■ Chips get clogged → The tool vibrates radially, negatively affecting machining dimensions and tool life → There is a risk of damaging the product *For more details, please refer to the PDF document or feel free to contact us.

Hole processing is one of the machining processes where achieving precision is difficult due to the complex interplay of various factors. If, for any reason, the hole becomes eccentric, it will affect subsequent reaming, tapping, and counterboring operations. With 'NCVIEW', you can pre-verify and improve various troubles such as NC data format errors, tool setting errors, and interference accidents. 【Overview of Hole Processing】 ■ Tool accuracy such as drill shoulder height, blade angle, and thinning ■ Compatibility of tool, workpiece, and coolant properties ■ Tool deflection, chatter, wear, chip clogging, and friction heat ■ Hole depth, diameter, positioning, and accuracy of pilot holes ■ Feed rate and backlash 　→ Achieving precision is difficult due to the complex interplay of various factors. *For more details, please refer to the PDF document or feel free to contact us.

To suppress tool deflection and chatter and improve processing efficiency, we want to keep the protrusion length as short as possible. However, if it is too short, it will cause interference with the holder or spindle. By using the tool length optimization feature of 'NCVIEW', you can find the shortest protrusion length, allowing you to avoid interference with the holder or spindle. Please feel free to contact us if you need assistance. [Cause of Trouble] ■ Suppressing tool deflection and chatter to improve processing efficiency - For that, we want to keep the protrusion length as short as possible - If it is too short, it will cause interference with the holder or spindle * For more details, please refer to the PDF document or feel free to contact us.

Even if you create NC data through CAM after modeling in CAD, if there are errors in the data input into the CAD/CAM, you will not obtain correct NC data. Even if the NC data is accurate, mistakes in the NC macro program, incorrect tool compensation settings, or errors in the workpiece's position, orientation, or coordinate system settings can lead to significant problems, such as reduced operational efficiency and quality defects, and in some cases, even interference accidents. By using 'NCVIEW,' which allows simulations in an environment similar to the actual machining setup and has a macro debugger, you can efficiently verify machining troubles. [Causes of Problems] ■ If there are errors in the data input into CAD/CAM, correct NC data cannot be obtained. ■ Mistakes in the NC macro program. ■ Tool compensation settings are not correctly set. ■ Errors in the workpiece's position, orientation, or coordinate system settings. → This can lead to significant problems, such as reduced operational efficiency and quality defects, and in some cases, even interference accidents. *For more details, please refer to the PDF document or feel free to contact us.

In the current era of advancing CAM technology, why do mistakes in NC data persist? The methods for creating NC data have diversified, including "manually input NC data," "CAM and interactive," "NC macros," and "mixed CAM and NC macros." While CAM has evolved significantly, it has not yet reached a level where it can automatically convert the processing know-how of skilled technicians into NC data in an optimal form. The complexity of metal processing hinders this. Final checks must be performed by humans, and the system that allows for efficient execution of this is 'NCVIEW.' **Causes of Trouble** - In the processing site, it is essential to search for appropriate cutting conditions by listening to sounds and feeling vibrations. - Because changes are made to the NC data during this process, final verification of the NC data is necessary. → This is one reason why verification using only the intermediate file (CL data) generated before post-processing by CAM is insufficient. *For more details, please refer to the PDF document or feel free to contact us.*