Sigma Electric Manufacturing Corporation Production Manager Interview Questions and Answers

Grinding is a process of removing material from a workpiece using an abrasive wheel. Multi-point cutting tools are tools with multiple cutting edges.

• Grinding is used to achieve high precision and surface finish on workpieces.

• Multi-point cutting tools are commonly used in machining operations such as milling, drilling, and turning.

• Examples of multi-point cutting tools include end mills, drills, and taps.

• The number of cu...read more

5S, Kaizen, and 7QC tools are all methodologies used in lean manufacturing to improve efficiency and quality.

• 5S is a workplace organization method that involves sorting, simplifying, sweeping, standardizing, and sustaining.

• Kaizen is a continuous improvement process that involves identifying and eliminating waste and inefficiencies.

• 7QC tools are a set of quality control tools used to identify and solve problems, includi...read more

Grinding defects are common in manufacturing processes and can affect the quality of the final product.

• Cracks or fractures in the material being ground

• Uneven surface finish

• Burn marks or discoloration

• Chatter marks or vibration

• Incorrect wheel dressing or selection

• Improper machine alignment or setup

• Inadequate coolant or lubrication

• Excessive wheel wear or loading

• Incorrect feed rate or grinding pressure

Plunge grinding and through feed grinding are two types of grinding processes used in manufacturing.

• Plunge grinding involves grinding a part by plunging it into the grinding wheel, while through feed grinding involves feeding the part through the grinding wheel continuously.

• Plunge grinding is typically used for parts that require a tight tolerance and a smooth surface finish, while through feed grinding is used for hig...read more

Kanban is a visual project management system that helps teams improve workflow efficiency.

• Kanban originated from the Toyota Production System and is widely used in agile software development.

• It uses visual boards with columns and cards to represent tasks and their progress.

• Cards move across columns, indicating the status of each task (e.g., to-do, in progress, done).

• Kanban promotes continuous flow, limiting work in pro...read more

Grinding is a process of removing material from a workpiece using a grinding wheel. Multi-point cutting tools are tools with multiple cutting edges.

• Grinding is commonly used in manufacturing to achieve tight tolerances and smooth finishes.

• Multi-point cutting tools are used in machining operations to remove material from a workpiece.

• Examples of multi-point cutting tools include drills, end mills, and reamers.

• The number ...read more

5S, Kaizen, and 7QC tools are methodologies used in manufacturing to improve efficiency and quality.

• 5S is a workplace organization method that involves sorting, simplifying, sweeping, standardizing, and sustaining.

• Kaizen is a continuous improvement philosophy that involves making small, incremental changes to processes and systems.

• 7QC tools are a set of quality control tools used to identify and solve problems, includi...read more

Grinding defects are common in manufacturing processes and can include chatter marks, burn marks, and surface cracks.

• Chatter marks are caused by vibration during grinding and appear as a series of regular marks on the workpiece.

• Burn marks are caused by excessive heat during grinding and appear as discolored areas on the workpiece.

• Surface cracks can be caused by a variety of factors, including improper grinding techniqu...read more

Plunge grinding and through feed grinding are two types of grinding processes used in manufacturing.

• Plunge grinding involves grinding a part by plunging it into the grinding wheel, creating a flat or tapered surface.

• Through feed grinding involves feeding the part through the grinding wheels, creating a straight and smooth surface.

• Plunge grinding is typically used for parts with complex shapes or contours, while through...read more

Kanban is a lean manufacturing system that uses visual cues to signal the need for production or movement of materials.

• Kanban originated in Japan as a way to improve manufacturing efficiency.

• It involves using cards or other visual cues to signal when materials or products are needed.

• Kanban is often used in conjunction with just-in-time (JIT) manufacturing.

• It can also be applied to other industries, such as software dev...read more